David A. Wiss
Celine D. Tran
Erica M. LaFata- 1University of Los Angeles California, Fielding School of Public Health, Department of Community Health Sciences, University of California, Los Angeles, Los Angeles, CA, United States
- 2Nutrition in Recovery LLC, Los Angeles, CA, United States
- 3Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States
- 4Center for Weight Eating and Lifestyle Science, Drexel University, Philadelphia, PA, United States
Adverse childhood experiences (ACEs), such as childhood maltreatment and household dysfunction, are positively linked to substance use disorders (SUD), weight loss efforts, and maladaptive eating behaviors, including ultra-processed food addiction (UPFA) and eating disorder (ED) symptoms. However, the differential association of ACEs with UPFA by lifetime SUD history and ACEs with EDs by weight suppression— the discrepancy between an individual’s highest and current weight/BMI in adulthood— have not been examined. Using logistic regression and marginal effects analysis, this cross-sectional study aimed to assess (1) cumulative ACEs as a risk factor for screening positive for UPFA and EDs, (2) lifetime SUD history as a moderator of the ACE-UPFA relationship, and (3) weight suppression as a moderator of the ACE-ED relationship. Among 287 adults presenting to a private practice offering nutrition counseling for EDs and SUD recovery, the presence of 4 or more ACEs (compared to <4 ACEs) significantly increased the odds of UPFA-positive screens (OR=1.99; CI=1.19-3.35; p=0.01) but not ED-positive screens (OR=1.36; CI=0.80-2.30, p=0.25). Additionally, the interaction between ACEs and SUD was significant to the UPFA outcome (p<0.01). Those with a self-reported lifetime history of SUD exhibited an increased probability of UPFA-positive screens in the presence of 4 or more ACEs. Meanwhile, the probability of UPFA-positive screens remained unchanged among those who did not report a lifetime SUD history. Cumulative ACEs did not significantly predict ED-positive screens, and the ACE-weight suppression interaction did not meet the threshold for significance. Overall findings underscore the cross-vulnerability between addictive behaviors and the potential importance of integrating nutrition interventions in addiction treatment for those with ACEs.
1 Introduction
Household adverse childhood experiences (ACE), measured by the highly utilized ACE scale, encompass childhood maltreatment and household dysfunction (1). Extensive research links higher ACE exposure to a wide range of psychosomatic consequences, including increased social disadvantage (2, 3), heightened risk of adverse health conditions (4–6), and greater likelihood of engaging in high-risk behaviors (1, 7, 8). With an estimated national economic burden of $13.9 trillion in lost healthy life-years (9), there is an urgent need for targeted interventions to mitigate the long-term health impacts of ACEs.
ACEs have also been associated with poor nutritional outcomes like higher body mass index (BMI) (10) and poor diet quality (11–13). As such, there is increasing concern regarding the link between ACEs and maladaptive eating behaviors, including ultra-processed food addiction (UPFA) and eating disorders (EDs). The Yale Food Addiction Scale defines UPFA as the compulsive consumption of highly palatable, ultra-processed foods [e.g., soft drinks, packaged sweet or savory snacks (14)] and the inability to reduce their intake in the face of negative consequences (15). Alternatively, ED behaviors encompass a wider range of harmful eating patterns, from compulsive overconsumption (i.e., bingeing) to severe restriction (16). While UPFA is biologically reinforced by the addictive potential of ultra-processed foods, EDs often involve distorted perceptions of food, weight, or appearance that drive disordered eating.
Theories suggest that ACEs contribute to UPFA and ED risk through neurobiological disruptions (17), such as executive dysfunction (18), stress dysregulation (19, 20), and altered reward processing (21). These vulnerabilities may heighten stress perception (22, 23), neurotic tendencies (24), and psychological distress (25) that, altogether, may promote reliance on maladaptive coping strategies such as ultra-processed food consumption. These foods may serve as one avenue of self-regulation due to their immediate, highly palatable, and rewarding nature (26–29). Ultra-processed foods may briefly alleviate distress by activating dopamine-driven reward pathways; however, the “relief” derived from these foods is short-lived, lending to reinforcement of their habitual use and overconsumption (30). Consequently, higher ACE scores have been linked to increased intake of ultra-processed foods high in calories, fat, and sugar (31, 32). Not only may overconsumption of these foods undermine an individual’s ability to maintain healthy eating habits (33), but it may also increase susceptibility to UPFA (34) and EDs (32). Bingeing on hyper-palatable, ultra-processed foods (35, 36), paired with efforts to restrain their eating, are common features of EDs posited to be sustained by the increasing availability of ultra-processed foods in the environment (37). Meanwhile, repeated ultra-processed food consumption may also become biologically reinforced and progress toward addiction (15).
Research has linked higher ACE scores to increased symptoms of UPFA (32, 38, 39) and EDs (40–44), as well as ED diagnoses (45, 46). Treatment-seeking individuals with EDs also reported higher ACE exposures compared to a nationally representative sample (47). However, studies have yet to assess whether ACE exposure predicts screening outcomes using instruments designed to identify UPFA and ED risks at predetermined cut-points. Such tools are essential for efficiently identifying patients who need further evaluation and treatment to mitigate health risks. Additionally, while ACEs have been independently associated with both UPFA and EDs, these relationships have not been examined within the same study population, limiting direct comparisons of ACE-related risk across eating pathologies.
There is also a need to explore moderators in the ACE, UPFA, and ED relationships. While research on moderating ED symptoms is limited (41, 42, 44), no studies have examined moderators of UPFA. A common limitation is the frequent use of ACEs as a continuous variable, which makes it difficult to identify dichotomous interacting factors in these relationships. This is particularly relevant for clinicians who rely on screening instruments with predetermined cut-points to assess risk and guide clinical decision-making. This approach also overlooks the significant impact of cumulative ACEs (22, 24), where prior research suggests that dichotomizing ACEs at a threshold of four or more exposures better predicts adverse outcomes than assessing individual ACEs (4, 6). While some studies have applied a dichotomized model to assess the ACE-ED relationship (40, 45, 48), this approach has not been applied to the ACE-UPFA relationship.
One potential moderator of the ACE-UPFA relationship is substance-use disorder (SUD). While ACEs independently increase the risk of both SUDs (49, 50) and UPFA, the intersection of these constructs remain unexplored. Individuals with a history of SUD may be particularly vulnerable to UPFA (51) as ultra-processed foods possess addictive qualities by activation of the dopamine system (or reward pathways) that mirror those engaged by drugs (52). Over time, frequent drug use and ultra-processed food consumption may lead to shared disruptions in dopamine signaling and enhance general reward-seeking behavior (53). Shared consequences may entail desensitization to natural, non-substance-related rewards (e.g., physical activity, hobbies, social interactions) and weakened inhibitory control over the consumption of highly reinforcing stimuli that promote intense feelings of pleasure [i.e., drugs (54) and ultra-processed foods (55, 56)]. While research has linked substance use to UPFA symptoms (57), the potential for cross-vulnerability between SUD and UPFA remains unclear (58, 59).
It may be the case that individual factors, such as ACE exposure, may contribute to the co-occurrence or transition between SUD and UPFA. Blunted reward processing (60) and impulsivity in response to negative affect (61) have mediated direct links between early life adversities and problematic substance use. Early life adversities have also shown a potential to amplify drug-related cravings (62, 63) and neural sensitivity to psychostimulants (23). Meanwhile, similar adaptations in reward-related neurocircuitry (64) and dysregulations of affect (65) are implicated in associations of early life adversities with UPFA and hyperpalatable food cravings (66). In this context, ACE-related disturbances may heighten susceptibilities to compulsive consumption patterns targeting various highly rewarding stimuli. In combination, exposure to ACEs and having a lifetime history of SUD may compound neurological and behavioral vulnerabilities that lend to UPFA risk.
Weight suppression has yet to be examined as a moderator in the ACE-ED relationship. While ACEs are linked to greater ED symptoms, weight suppression—the discrepancy between an individual’s highest and current weight/BMI after reaching adulthood (67)— is associated with ED diagnoses (68), symptom maintenance (69, 70), and clinical impairment (71). Weight suppression is often considered an adaptive subconstruct of dieting that entails engaging in restraint, restriction, or compensatory behaviors to both achieve weight loss and counteract psychobiological pressures to regain weight (72). Evidently, weight suppression has been linked to greater weight gain (73, 74), increased metabolic efficiency or reduced caloric needs (73), hormonal appetite dysregulation (75–77), and heightened reinforcing value of food (76). Unwanted weight gain—or even its perceived risk—may conflict with ED-related goals, such as maintaining a lower weight and conforming to internalized beauty standards. In vulnerable individuals, weight suppression—initially achieved through adaptive dieting (e.g., eating low-fat foods)—may trigger maladaptive dieting (e.g., purging) and heighten ED risk (78). Accordingly, greater weight suppression has been linked to more severe ED psychopathology, including poorer self-esteem related to weight and appearance (79–82).
Examining weight suppression alongside individual factors may help identify at-risk groups for EDs following significant weight loss. Specifically, ACE exposure may not only promote weight-suppressive behaviors but also heighten vulnerabilities to ED symptoms in weight-suppressed individuals. ACEs are linked to higher BMIs (10), which may promote chronic dieting and weight cycling (83). Additionally, ACEs and weight suppression share associations with increased concerns about eating, weight, and body shape (44), as well as low-self-esteem. The latter of which has been shown to mediate links between ACEs and binge-eating (84). Additionally, weight suppression is believed to reduce satisfaction related to food intake (76, 85), mirroring blunted reward sensitivity observed in ACEs. This effect is particularly relevant in cases where those with binge-type EDs exhibit satiation deficits compared to those without EDs (86). Women with a history of anorexia nervosa and bulimia nervosa also demonstrate difficulty distinguishing the emotional value between positive and negative feedback in monetary reward tasks (87, 88). Therefore, in the context of ACEs, individuals with weight suppression may be particularly susceptible to EDs.
Taken together, this study aims to address key gaps in the literature by assessing how cumulative ACE exposure relates to UPFA and ED screening outcomes, along with potential moderators in these relationships. First, no research has assessed cumulative ACEs (dichotomized at 4 or more ACEs) in relation to UFPA and ED risk within the same sample, which would allow for direct comparisons of ACE-related risk across eating pathologies. Second, several moderators of cumulative ACE-related risk remain unexplored, and assessing dichotomized moderators in these relationships may improve the detection of these effects. Specifically, the presence of lifetime SUD history may amplify ACE-related vulnerabilities to UPFA, which may reveal cross-vulnerability potential across addictive behaviors. Additionally, being weight suppressed may heighten ACE-related ED risk, highlighting high-risk subgroups that may be particularly susceptible to disordered eating. We hypothesized that 1) individuals with 4 or more cumulative ACEs are more likely to screen positive for both UPFA and ED risk; 2) self-reported lifetime SUD history would strengthen the relationship between cumulative ACEs and UPFA-positive screens; and 3) being weight suppressed would also strengthen the relationship between cumulative ACEs and ED-positive screens.
2 Methods
This study was approved by the UCLA Institutional Review Board (IRB# 20-008829) to collect data from September 2020 to April 2024. Data were sourced from a private, cash-based nutrition counseling practice in Los Angeles, California, where registered dietitian nutritionists specialize in EDs and SUDs. The patient population primarily sought nutrition support for disordered eating or SUD recovery.
Data were collected at a single time point via a HIPAA-compliant online intake form, completed independently before the initial consultation. All new patients received an email with a link to a questionnaire covering demographics, self-reported SUD status, and screening assessments for ACEs, UPFA, and EDs. Demographic data included age, gender, race/ethnicity, education, parental education, and self-reported height and weight (including highest and lowest adult weights) to calculate BMI and weight suppression.
The final analysis, conducted in April 2024, included 287 participants (73.9% women), ages 21–75. Participants were at least 21 years old to ensure accurate weight suppression reporting. Only those who provided written informed consent were included. A total of 20.7% of potential participants opted out. There were no missing data; however, two participants were excluded for reporting a highest lifetime weight lower than their lowest (implausible data assumed participant error).
Adverse childhood experiences: Participants completed the 10-item ACE questionnaire with yes/no responses (1). A threshold of 4 or more “yes” responses (4+ ACEs) categorized participants as having high cumulative ACEs, while those with fewer than 4 (<4 ACEs) were classified as having low cumulative ACEs. The 10-item ACE scale has demonstrated good internal consistency for use in adults (89).
Modified yale food addiction scale (mYFAS2.0): The mYFAS2.0 (90) is a validated 13-item shortened version of the original 35-item YFAS (15). Two items assess clinical significance, requiring at least one positive response for UPFA classification. Severity levels were defined as mild (2–3 symptoms), moderate (4–5 symptoms), or severe UPFA (6+ symptoms). Participants were dichotomized into two groups: none/mild UPFA and moderate/severe UPFA, with the latter indicating a UPFA-positive screen or having UFPA risk.
To enhance UPFA classification specificity, we adopted a higher dichotomization threshold for our sample presentation, which largely constitutes elevated baseline symptomatology. This aligns with studies using stricter criteria in populations [e.g., binge-eating disorder (91)] that may exhibit compulsive eating not necessarily rooted in addiction-like processes.
Eating disorder examination – questionnaire short (EDE-QS): The EDE-QS is a validated 12-item version (92) of the original 28-item EDE-Q (93). Participants rated the frequency of certain behaviors over the past 7 days on a 4-point scale: (1) 0 days; (2) 1–2 days; (3) 3–5 days; and (4) 6–7 days. Scores range from 0 to 36, with a threshold of 15 or higher indicating a high likelihood of an ED based on a sensitivity of 0.83 and specificity of 0.85 (94). Participants scoring above this threshold were categorized as an ED-positive screen or having ED risk.
Lifetime substance use disorder history: Participants were asked, “Do you identify as having a current or previous alcohol or other substance use disorder?” Responses were categorized as “yes” (self-reported lifetime history of SUD) or “no.”
Weight suppression: Weight suppression was calculated by dividing current weight by the lifetime adult midpoint weight (average between highest and lowest reported adult weights) (95). This calculation was preferred over the more common calculation (i.e., the absolute difference between highest and current adult weight), as the latter may be less sensitive in distinguishing ED from UPFA symptoms. This distinction is relevant given the associations between weight suppression and ultra-processed food intake (95) and the overlap between UPFA and ED characteristics (96).
Weight suppression was categorized as a binary: participants above the sample mean for weight suppression were considered weight suppressed, while those below the sample mean were categorized as not weight suppressed. Dichotomizing by the mean accounted for the sample’s skew toward individuals with a lifetime SUD history [linked to weight changes (97)] and higher BMIs.
2.1 Statistical analysis
Using Stata 18 (98), we conducted logistic regression analyses to evaluate two hypothesized main effects and two hypothesized interaction effects. Logistic regression models were estimated using Maximum Likelihood Estimation (p<0.05). Results were reported as odds ratios (ORs) and 95% confidence intervals (CIs).
All predictors (cumulative ACEs), moderators (lifetime SUD history, weight suppression status), and outcome variables (UFPA risk, ED risk) were binary (4+ ACEs vs. <4 ACEs). All models were also adjusted for potential confounders. Continuous covariates included age and BMI. Binary covariates included gender (female vs. non-female) and race (White vs. non-White). Due to small sample sizes, men and nonbinary participants were coded as non-female, and non-Hispanic Black, Hispanic/Latino, Asian, Other/Mixed, or those selecting “prefer not to say” were coded as non-White. Additional categorical covariates included education (high school or less, some college, college graduate, graduate-level) and parental education (at least one parent college graduate vs. none).
For Hypothesis 1, we assessed direct relationships using two separate logistic regression models: one examining the association between cumulative ACEs and UPFA-positive screens and the other between cumulative ACEs and ED-positive screens. For Hypothesis 2, we updated the ACE-UPFA model to include an interaction term between cumulative ACEs and a self-reported lifetime history of SUD. For Hypothesis 3, we updated the ACE-ED model to include weight suppression status as a moderator.
For Hypotheses 2 and 3, interaction terms were assessed within the logistic regression framework and further analyzed via joint marginal effects analysis. The significance of the latter was determined using post-estimation Wald tests (p<0.05). Predicted probabilities with 95% CIs were reported.
3 Results
Table 1 reveals that the majority of our 287 participants were women (73.9%) and White (82.2%), with a mean age of 40.2 (SD=13.6). Over half (55.4%) had a BMI above 25 (4.9% underweight, 39.7% normal, 18.1% overweight, 37.3% 30 or above), with a mean BMI of 28.7 (SD=8.9).
Table 1. Demographic characteristics of study sample by adverse childhood experience exposure (N=287; Ages 21+).
Half of the participants reported 4+ ACEs (50.2%), with this group significantly more likely to report a lifetime history of SUD (69.4% vs. 44.1% for those with <4 ACEs; p<0.01). Age, gender, race/ethnicity, education, and BMI did not correlate with ACE scores, but parental education did (p=0.02 with lower levels of education in the 4+ ACE group).
Concerning our outcomes of interest, 40.4% met the criteria for moderate or severe UPFA (50.2% none; 9.4% mild; 8.7% moderate; 31.7% severe), 61.7% had an ED-positive screen, and 36.2% met the criteria for both UPFA and ED risk. 56.8% of participants reported a lifetime history of SUD, while 47.4% reported above-average weight suppression.
Hypothesis 1: Table 2 shows that participants with 4+ ACEs had significantly higher odds of UPFA-positive screens than those with <4 ACEs (OR=1.99; CI=1.19-3.35; p=0.01). However, cumulative ACEs did not significantly predict the odds of ED-positive screens (OR=1.36; CI=0.80-2.30; p=0.25).
Table 2. Adjusted logistic regression of adverse childhood experiences on positive screens for ultra-processed food addiction and eating disorder (N=287; Ages 21+).
Hypothesis 2: Supplementary A shows that interaction terms between 4+ ACEs and self-reported lifetime history of SUD (OR=2.50; 95% CI=0.84-7.49, p=0.10) were jointly significant (p<0.01) in the post-estimation analysis of their joint marginal effects.
Figure 1 shows that among individuals who reported a lifetime SUD history, predicted probabilities of UPFA-positive screens were 35.4% (CI=0.23-0.47) for those with <4 ACEs and 55.8% (CI=0.46-0.65) for those with 4+ ACEs, representing a 20% increase across ACE scores. Individuals who did not report a lifetime history of SUD showed no change across ACE scores in UPFA-positive screens. Those with self-reported lifetime SUD history had greater predicted probabilities of UPFA-positive screens regardless of ACEs.
Figure 1. Margins Plot from Adjusted Logistic Regression Interacting Adverse Childhood Experiences (ACEs) and Substance Use Disorder (SUD) on Ultra-Processed Food Addiction (UPFA) Among Adults (Ages 21+) Seeking Nutrition Counseling (N=287) (see Supplementary A for full output).
Hypothesis 3: Supplementary B shows that the interaction between weight suppression status and cumulative ACEs was non-significant (OR=1.70; CI=0.60-4.80; p=0.32). A post-estimation test of joint marginal effects also showed no significant interaction (p=0.18).
Figure 2 shows that among individuals with weight suppression, predicted probabilities of ED-positive screens were 49.6% (CI=0.37-0.62) for with <4 ACEs and 63.3% (CI=0.55-0.78) for those with 4+ ACEs, representing a 14% increase across ACE scores. Among individuals without weight suppression, the predicted probability of ED-positive screens showed no changes across ACE scores. Those without weight suppression also had greater predicted probabilities of ED-positive screens regardless of ACEs.
Figure 2. Margins Plot from Adjusted Logistic Regression Interacting Adverse Childhood Experiences (ACEs) and Weight Suppression on Eating Disorder (ED) Among Adults (Ages 21+) Seeking Nutrition Counseling (N=287) (see Supplementary B for full output).
4 Discussion
4.1 Ultra-processed food addiction
In alignment with prior research (32, 38, 39), our findings suggest that 4+ ACEs are associated with a greater likelihood of meeting the criteria for UPFA. One possible explanation is that children exposed to adversity often lack access to effective coping strategies or positive models of self-regulation in early life, leaving them more vulnerable to developing maladaptive behaviors. As a result, ultra-processed foods—being highly accessible and immediately rewarding—may become a primary means of self-regulation in early life (30). ACE-related effects may reinforce this behavior through several pathways. One possibility is that these individuals with high ACE exposure turn to ultra-processed foods to manage distress, given the lasting impact of ACEs on stress and emotional regulation (23, 24). Another involves ACE-related reward dysfunction (21), where blunted pleasure responses to naturally rewarding activities may drive increased consumption of ultra-processed foods for their potent dopamine-releasing effects. Over time, repeated ultra-processed food exposure may cause chronic dopaminergic hyperactivation and subsequent downregulation of dopamine receptors involved in reward processing, ultimately reinforcing dependency through neurobiological reinforcement (53). As a result, individuals with high ACEs may rely on ultra-processed foods not only for self-regulation and pleasure (99) but also to maintain baseline reward function and avoid discomfort when intake is reduced.
Notably, the interaction between cumulative ACEs and a lifetime history of SUD more than doubled the odds of UPFA-positive screens. While prior studies have struggled to establish links between SUDs and UPFA (58, 59), our findings suggest that elevated ACE exposure may promote cross-vulnerabilities between SUD and UPFA. The enduring effects of ACEs combined with SUD-related dopaminergic dysregulation (53) may amplify disruptions in pleasure perception (60) beyond those seen in individuals with either risk factor alone. Cross-vulnerabilities between SUD and UPFA may be particularly relevant during early SUD recovery when withdrawal symptoms are most intense, prompting individuals to seek out ultra-processed foods as a substitute for diminished sources of gratification (100). The same dopaminergic impairments that contribute to substance addiction may also drive addictions to ultra-processed foods, reinforcing a new cycle of dependency that targets food instead of drugs. This effect may be particularly pronounced in individuals with ACE-related reward deficits, as the added neurobiological strain from substance use may further intensify drives for highly rewarding stimuli such as ultra-processed foods.
4.2 Eating disorders
Contrary to our hypothesis, cumulative ACEs did not increase the likelihood of ED-positive screens in our sample. One explanation may be the loss of predictive power from using logistic regression and dichotomized screening instruments. This contrasts with prior work linking ACEs to EDs, which assessed continuous ACE measures (42, 46, 47) and individual ACE indicators (45) as predictors or assessed ED symptom count-based severity (47) and specific ED symptoms as outcomes (40–43). Another possibility is that ACEs predicted UPFA but not EDs due to our sample composition, where 56.8% reported a lifetime history of SUD, and 55.4% had a BMI above 25. Lifetime SUD history may have compounded ACE-related reward dysfunction, increasing vulnerability to compulsive eating. Similarly, obesity has been linked to compulsive eating through shared reward-processing vulnerabilities with addiction (101). As a result, our sample presentation may have been skewed toward reward-driven, compulsive consumption patterns, better captured by the mYFAS, rather than other traditional ED features like pathological dieting, better assessed by the EDE-QS. Thus, the relevance of a general screening measure such as the EDE-QS to our sample may be limited.
The EDE-QS also broadly assesses disordered eating within the context of ED-specific psychopathology, including concerns about weight, shape, or appearance. Certain EDs (namely binge-type EDs) also feature compulsive overconsumption patterns relevant to our sample, albeit unspecific to ultra-processed food intake. In contrast, UPFA is characterized by compulsive eating of specifically ultra-processed foods, driven by neurobiological reinforcement and independent of ED-related distress or body image concerns (102). As a result, the EDE-QS may have also failed to detect cases of compulsive overconsumption (i.e., binging) that lacked guilt or ED-related concerns but were also not rooted in addiction-like processes. This may have led to an underestimation of ED risk in our sample and weakened the observed ACE-ED association, lending to our contrasting findings with other studies linking higher ACEs to binge eating (40, 43).
Certain unmeasured factors may have also differentially influenced ACE associations with ED and UPFA risk. Specifically, adulthood adversities like food insecurity, economic instability, or limited access to healthcare/mental health resources may be potential confounders in the ACE-ED relationship. Food insecurity, for example, has been shown to exacerbate the ACE-binge eating relationship in bariatric surgery-seeking patients (42). In contrast, our sample—composed of primarily socially advantaged White women with higher educational attainment and socioeconomic status—may face fewer related stressors, potentially weakening the ACE-ED link. Alternatively, ACE-related UPFA risk may be sustained by 1) the strength of biological reinforcement that entails addiction and 2) the modern food environment, where ultra-processed foods are widely available and heavily marketed, lending to the sustenance of cravings even in the absence of distress-related triggers (30). Many participants were also engaged in other forms of mental health treatment (e.g., therapy), which may have attenuated patterns of disordered eating related to ACEs upon presentation to nutrition counseling. Relatedly, greater self-compassion has been shown to weaken the ACE-ED relationship (41), while emotion regulation strategies may mitigate ACE-related psychological distress (25). Meanwhile, ED and SUD treatments are more established than those for UPFA, which remains an evolving construct and is less likely to be formally recognized in clinical care.
Given the lack of a significant main effect, it was unsurprising that the interaction between ACEs and weight suppression was non-significant in predicting ED risk. However, among weight-suppressed individuals, those with 4+ ACEs showed a trend toward a higher likelihood of ED-positive screens, suggesting a potential compounded risk. Interestingly, individuals without weight suppression consistently had higher predicted probabilities of ED-positive screens, regardless of ACEs. It may be the case that the prominence of addictive-like or compulsive consumption patterns, likely influenced by lifetime SUD history, may have overshadowed the predictive power of weight suppression for ED risk in our sample (where 49.8% met the criteria for mild to severe UPFA). Weight suppression has been previously linked to restrictive-type EDs, such as anorexia nervosa and bulimia nervosa, but not binge-eating disorder (68), which shares behavioral and neurological similarities with UPFA (102). Theories also suggest that UPFA represents intensified ED severity (96), and recent findings indicate that UPFA symptoms mediate 73.8% of the positive association between ultra-processed food intake and ED symptomology (32). Additionally, research suggests that weight suppression may be a stronger predictor of disordered eating in individuals with lower BMIs (<21.5 kg/m² (103);), a group underrepresented in our sample, where only 4.9% were underweight, and 55.4% had a BMI of 25 or higher. Efforts to suppress weight exist in our sample but are likely more difficult when addictions are present.
4.3 Limitations, future considerations, and conclusions
Limitations include the cross-sectional design, which restricts causal inference, as well as the use of logistic regression with screening instruments dichotomized at cut-points, which may reduce the nuance of dose-response associations among our scales (104). The 10-item ACE scale focuses on family and household dysfunctions and may overlook community (e.g., bullying/teasing in school) and systemic (e.g., food insecurity related) adversities that could be more relevant to ED risk in our sample. Additionally, the EDE-QS may under-detect binge-type EDs, while the mYFAS2.0 might overrepresent UPFA-positive screens due to behavioral overlaps with binge-type EDs (105). The mYFAS2.0 may also misclassify underweight individuals and those with restrictive EDs as UPFA-positive screens due to shared negative perceptions about food intake (106).
The sample consists of individuals seeking nutritional management for SUD/EDs, so findings may not be generalized to other ED populations. Additionally, the private nutrition counseling practice lacked access to medical records and on-site clinicians qualified to diagnose SUD or EDs. Consequently, reliance on retrospective screening tools and self-reported intake questionnaires introduces recall bias and limits findings to risk assessment rather than formal diagnoses. Furthermore, our sample primarily consists of women of higher-socioeconomic status, a common limitation in existing literature. While socioeconomic factors, such as food insecurity, may have influenced our findings, they were not explicitly measured in our study. Consequently, the generalizability of our results to lower-income or food-insecure populations remains limited.
Future longitudinal studies are needed to clarify causal links among ACEs, SUD, weight suppression, UPFA, and EDs. Research should incorporate comprehensive assessments, including clinician-administered interviews, of SUD and disordered eating. The latter may reduce bias toward restrictive EDs and better capture the impact of weight suppression on ED risk in those with childhood adversity. Examining additional moderators and mediators may further elucidate pathways between ACEs and maladaptive eating and identify vulnerability characteristics. Greater demographic diversity is also needed to improve generalizability across genders, socioeconomic backgrounds, and cultures. Beyond research, current nutritional interventions may benefit from incorporating ACE screenings to assess the risk for addictive-like eating patterns (107). Integrating nutritional counseling into addiction treatment could also help improve dietary habits and may prevent the progression of maladaptive eating behaviors to UPFA (108). It could also prove worthwhile to ascertain whether UPFA confers additional risk for SUD relapse.
In conclusion, our research underscores the importance of a comprehensive approach to understanding how the psychological impact of ACEs affects adult eating behavior and the role of SUD in perpetuating maladaptive consumption patterns. We found that individuals with a history of greater ACEs have an increased risk of screening positive for UPFA, particularly when these experiences co-occur with a self-reported lifetime history of SUD. Our findings suggest that SUD may exacerbate the risk of UPFA by amplifying the impact of childhood adversity and highlight the need for targeted interventions to address the interconnected issues of ACEs, SUD, and maladapted eating behaviors.
Data availability statement
The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.
Ethics statement
The studies involving humans were approved by University of California, Los Angeles Institutional Review Board. The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study.
Author contributions
DW: Conceptualization, Data curation, Formal analysis, Methodology, Project administration, Resources, Supervision, Writing – review & editing. CT: Writing – original draft. EL: Writing – review & editing.
Funding
The author(s) declare that no financial support was received for the research and/or publication of this article.
Acknowledgments
DW would like to acknowledge Professor A. Janet Tomiyama for assistance in the project approval process.
Conflict of interest
Author DW was employed by the company Nutrition in Recovery LLC.
The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision.
Generative AI statement
The author(s) declare that no Generative AI was used in the creation of this manuscript.
Publisher’s note
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Supplementary material
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fpsyt.2025.1543923/full#supplementary-material
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Keywords: adverse childhood experiences, ultra-processed food, food addiction, eating disorder, substance use disorder, weight suppression, moderation
Citation: Wiss DA, Tran CD and LaFata EM (2025) The association between cumulative adverse childhood experiences and ultra-processed food addiction is moderated by substance use disorder history among adults seeking outpatient nutrition counseling. Front. Psychiatry 16:1543923. doi: 10.3389/fpsyt.2025.1543923
Received: 12 December 2024; Accepted: 04 March 2025;
Published: 27 March 2025.
Edited by:
Paolo Meneguzzo, University of Padua, ItalyReviewed by:
Gabriela Santos, Federal University of Pernambuco, BrazilDragana Ratković, University of Novi Sad, Serbia
Copyright © 2025 Wiss, Tran and LaFata. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: David A. Wiss, ZGF2aWRhd2lzc0BudXRyaXRpb25pbnJlY292ZXJ5LmNvbQ==