Research

Journal Articles by David Wiss

Peer-Reviewed Journal Articles by David A. Wiss MS RDN

(ORCID Link Takes You Directly To The Articles)

Wiss, D. A., Avena, N., & Rada, P. (2018). Sugar addiction: From evolution to revolution. Frontiers in Psychiatry, 9(545). doi:10.3389/fpsyt.2018.00545

Wiss, D. A., Schellenberger, M., & Prelip, M. L. (2018). Rapid assessment of nutrition services in Los Angeles substance use disorder treatment centers. Journal of Community Health. https://doi.org/10.1007/s10900-018-0557-2

Wiss, D. A., Schellenberger, M., & Prelip, M. L. (In Press). Registered dietitian nutritionists in substance use disorder treatment centers. Journal of the Academy of Nutrition and Dietetics. doi:10.1016/j.jand.2017.08.113

Wiss, D. A., Criscitelli, K., Gold, M., & Avena, N. (2017). Preclinical evidence for the addiction potential of highly palatable foods: Current developments related to maternal influence. Appetite.doi:10.1016/j.appet.2016.12.019

Wiss, D. A., & Brewerton, T. B. (2016). Incorporating food addiction into disordered eating: The disordered eating and food addiction nutrition guide (DEFANG). Eating and Weight Disorders. doi:10.1007/s40519-016-0344-y

Wiss, D. A., & Waterhous, T. S. (2014). Nutrition therapy for eating disorders, substance use disorders, and addictions. In Brewerton, T. D., & Dennis, A. B., Eating disorders, substance use disorders, and addictions (pp. 509-532). Heidelberg, Germany: Springer Publishing.

Specter, S. E., & Wiss, D. A. (2014). Muscle dysmorphia: Where body image obsession, compulsive exercise, disordered eating, and substance abuse intersect in susceptible males. In Brewerton, T. D., & Dennis, A. B., Eating disorders, substance use disorders, and addictions (pp. 439-457). Heidelberg, Germany:Springer Publishing.

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Is There Science to Sugar Addiction?

Is There Science to Sugar Addiction???

I know, I know, I know…food addiction and sugar addiction are controversial topics, especially in the eating disorder community, where any kind of “diet” beliefs or behaviors are viewed as harmful. I agree that many of the proponents of sugar addiction and food addiction carry a very punitive “food negative” message. Is there a way to accept the science of food addiction AND be “eating disorder friendly” at the same time??? That takes skill. One has to be able to hold multiple things true at the same time, and separate emotions and personal bias from their work. But it can be done!!! In fact, it HAS TO be done!
The revolution is now.

Our latest publication: “Sugar Addiction: From Evolution to Revolution” has been recently published in the prestigious Frontiers in Psychiatry. I will say this was the hardest peer-review I have ever gotten through! It is published OPEN ACCESS so download it HERE. For those who work with eating disorders, there is a special section to address the controversies! Enjoy! Feedback always welcomed.

Is There Science to Sugar Addiction?

Want to learn more about Food Addiction? Check out our FAQ page on it.

Want to learn more about Eating Disorders? We got that too.

Nutrition in Recovery specializes in the nutritional management of addictions, eating disorders, body image, mental health, and weight management. We offer group education and individual counseling. We love to help people finally make peace with food and exercise. Nutrition in Recovery also offers general wellness services, sports nutrition, and medical nutrition therapy for various chronic diseases, including gastrointestinal issues. Whatever brings you into our office, we are prepared to help you on your journey to recovery.

We pride ourselves on being flexible with different food philosophies. We do not believe that any single food philosophy works for all people. In fact, we think that only having one food philosophy is not scientific. We are skilled in making an individual assessment in order to figure out the best treatment approach for you. We have a team of experts at Nutrition in Recovery and can therefore get you in touch with the best person for your specific needs.

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Vaping & Disordered Eating Video

Nutrition in Recovery is thrilled about our new monthly newsletter! Get the latest information on Nutrition for Addiction and Disordered Eating! Check out our latest video on Vaping!

This video is about Vaping, which can impact appetite, and be used for weight loss and control. In other words, vaping is linked to disordered eating. Exactly how can vaping relate to disordered eating? Find out the specifics!

Nutrition in Recovery is a group practice of Registered Dietitian Nutritionists and other health professionals who specialize in the treatment of addictions, eating disorders, body image, mental health, as well as general wellness.

We send out a monthly Newsletter summarizing the latest research linking nutrition and mental health. Each newsletter will include a short video with some helpful hints and actions you can implement to improve mental, spiritual, and physical wellbeing for yourself and for your clients. You will be among the first to hear the findings and insights from cutting-edge data, and we are providing references so you can do your own research if interested.

Within the next year you can look forward to the following topics being covered:

Bariatric Surgery

Child Nutrition

Circadian Rhythms

Men and Eating Disorders

View last month’s video on Attentional Bias & Disordered Eating

About Nutrition in Recovery 3

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Conflict of Interest in Nutrition Research

Conflict of Interest in Nutrition Research

There is a growing concern about bias and conflict of interest in the nutrition research landscape. Given the influence of systematic review and meta-analysis on nutrition policy, it has been suggested that industry sponsorship can undermine the integrity of nutrition research by investing heavily in studies that support their products and skew the systematic review process [1-3]. Out of 206 articles in a 2007 search, 111 declared financial sponsorship and the odds ratio of a favorable versus unfavorable result was 7.61 when comparing articles with all industry funding to no industry funding [2]. A systematic review of systematic reviews regarding the association between SSBs and weight gain found that those reviews with conflict of interest were five times more likely to present a conclusion of no positive association than those without [4]. A search of obesity-related arguments made by the food industry in major newspapers found suggestions that industry is “part of the solution” in 33% of the articles [5]. Other themes in the reframing of obesity included that government intervention is overreaching (25%), that products are not responsible (24%), that individuals are not responsible (15%), and that obesity is not a problem (3%) [5]. Not surprisingly, similar biases stemming from study sponsorship on the relationship between artificially sweetened beverages and weight have been found [6]. Dr. Marion Nestle has argued that corporate funding of food and nutrition research can seem more like marketing than science [7]. There exists an urgent need for improved disclosure practices and refined methods for evaluating studies used in systematic reviews. Given the obesity crisis and growing food addiction problem, reducing corporate sponsors from driving research agendas should be considered both a high public health and journal editorial board priority.

For more information on Conflict of Interest in Nutrition Research, check out our Dietitians for Professional Integrity Homepage

Dietitians for Professional Integrity 2

  1. Katan, M.B., Does industry sponsorship undermine the integrity of nutrition research?PLoS Med, 2007. 4(1): p. e6.
  2. Lesser, L.I., et al., Relationship between funding source and conclusion among nutrition-related scientific articles.PLoS Med, 2007. 4(1).
  3. Lucas, M., Conflicts of interest in nutritional sciences: The forgotten bias in meta-analysis.World J Methodol, 2015. 5(4): p. 175-8.
  4. Bes-Rastrallo, M., et al., Financial conflict of interest and reporting bias regarding the association between sugar-sweetened beverages and weight gain: A systematic review of systematic reviews.PLoS Med, 2013. 10(12).
  5. Nixon, L., et al., “We’re Part of the Solution”: Evolution of the Food and Beverage Industry’s Framing of Obesity Concerns Between 2000 and 2012.Am J Public Health, 2015. 105(11): p. 2228-36.
  6. Mandrioli, D., C.E. Kearns, and L.A. Bero, Relationship between Research Outcomes and Risk of Bias, Study Sponsorship, and Author Financial Conflicts of Interest in Reviews of the Effects of Artificially Sweetened Beverages on Weight Outcomes: A Systematic Review of Reviews.PLoS One, 2016. 11(9): p. e0162198.
  7. Nestle, M., Corporate Funding of Food and Nutrition Research: Science or Marketing?JAMA Intern Med, 2016. 176(1): p. 13-4.
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Attentional Bias Video

Nutrition in Recovery is thrilled to announce our new monthly newsletter! Get the latest information on Nutrition for Addiction and Disordered Eating! Check out our latest video on Attentional Bias!

This video is about Attentional Bias, which is the tendency for one’s perception to be affected by their recurring thoughts at the time. In other words, one’s bias towards noticing what they are already thinking of. How does Attentional Bias related to Disordered Eating? Find out!

Nutrition in Recovery is a group practice of Registered Dietitian Nutritionists and other health professionals who specialize in the treatment of addictions, eating disorders, body image, mental health, as well as general wellness.

We send out a monthly Newsletter summarizing the latest research linking nutrition and mental health. Each newsletter will include a short video with some helpful hints and actions you can implement to improve mental, spiritual, and physical wellbeing for yourself and for your clients. You will be among the first to hear the findings and insights from cutting-edge data, and we are providing references so you can do your own research if interested.

Within the next year you can look forward to the following topics being covered:

Vaping (E-cig)

Bariatric Surgery

Child Nutrition

Circadian Rhythms

Men and Eating Disorders

View last month’s video on Alcoholic Liver Disease

About Nutrition in Recovery 3

 

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Journal Publication: Nutrition Services in Los Angeles Substance Use Disorder Treatment

Rapid Assessment of Nutrition Services in Los Angeles Substance Use Disorder Treatment

One of our research studies “Rapid Assessment of Nutrition Services in Los Angeles Substance Use Disorder Treatment Centers” was recently published in the Journal of Community Health.

We assessed the prevalence of nutrition services in Los Angeles treatment centers and found that is was quite low! The article offers some important ideas about the addiction crisis.

Much thanks to Maria Schellenberger and Dr. Michael Prelip for their assistance with this research.

Link to article: http://link.springer.com/article/10.1007/s10900-018-0557-2
Direct download HERE

Journal Publication: Nutrition Services in Los Angeles Substance Use Disorder Treatment

Abstract

The objective of this study was to determine the prevalence of nutrition services and utilization of registered dietitian nutritionists at substance use disorder treatment centers in Los Angeles. This cross-sectional descriptive study utilized phone interviews with facilities within a 25-mile radius of the Los Angeles metropolitan area using the Substance Abuse and Mental Health Services Administration Treatment Services Locator to identify facilities that included a listing of substance abuse as primary focus of care (n=128). Facilities were asked if they offered any kind of nutrition services, the type of services that were offered, and the credential of the professional providing the services. We compared facilities that offered a residential level of care to those offering outpatient services only. The Fisher’s exact test was used to determine statistical significance. The study showed that only 39 sites (30.5%) offered any type of nutrition services on site, and the odds of a residential level of care offering nutrition services was 2.7 times higher than outpatient only facilities (p=0.02). Of the 39 facilities offering nutrition services, only 8 (20.5%) utilized a registered dietitian nutritionist. Overall fewer than 7% of the facilities utilized the services of a dietitian. Recovery programs for substance use disorder should consider using a registered dietitian nutritionist as a member of the treatment team, which may contribute to better clinical outcomes.

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Addiction Transfer via Nutrition During Pregnancy

Addiction Transfer via Nutrition During Pregnancy 

Ever wondered about the impact of nutrition during pregnancy? This presentation reviews the evidence from animal models.

Preclinical evidence for the addiction potential of highly palatable foods: Current developments related to maternal influence

by David Wiss, Kristen Criscitelli, Mark Gold, Nicole Avena

Abstract:

It is well established that obesity has reached pandemic proportions. Over the last four decades the

prevalence of obesity and morbid obesity have risen substantially in both men and women worldwide.

Although there are many causative factors leading to excessive weight gain including genetics and

sedentary lifestyle, the transformation of the food environment has undoubtedly contributed to the

dangerously high rates of obesity. The current food landscape is inundated with food engineered to

contain artificially high levels of sugar and fat. Overconsumption of these types of food overrides the

homeostatic mechanisms, which under normal circumstances regulate appetite and body mass, leading

to hedonic eating. Evidence from the animal literature has illustrated nutrition-influenced perturbations

that occur within the mesolimbic dopamine pathway, as well as maladaptive behavioral responses that

result from chronic ingestion of highly palatable foods. These neurobehavioral adaptations are similar to

what is observed in drugs of abuse. Recent evidence also supports that maternal exposure to these foods

is capable of provoking neurobehavioral alterations in offspring. Therefore the purpose of this review is

to summarize the current developments on the addictive potential of highly palatable foods, as well as

illuminate the impact of maternal hyperphagia and obesity on the reward-related neurocircuitry and

addiction-like behaviors in the offspring.

Journal Article HERE

Recorded webinar below!

This is a mini-webinar reviewing recent evidence of the impact of highly palatable foods on the neurodevelopment of the offspring, using animal models. The video is 10:19 and is highly recommended for those interested in brain chemistry, hormones, and epigenetics. This is a sensitive topic. Feedback is always welcome!

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Alcoholic Liver Disease Video

Nutrition in Recovery is thrilled to announce our new monthly newsletter! Get the latest information on Nutrition for Addiction! Check out our latest video on Alcoholic Liver Disease!

Nutrition in Recovery is a group practice of Registered Dietitian Nutritionists and other health professionals who specialize in the treatment of addictions, eating disorders, body image, mental health, as well as general wellness.

We send out a monthly Newsletter summarizing the latest research linking nutrition and mental health. Each newsletter will include a short video with some helpful hints and actions you can implement to improve mental, spiritual, and physical wellbeing for yourself and for your clients. You will be among the first to hear the findings and insights from cutting-edge data, and we are providing references so you can do your own research if interested.

Within the next year you can look forward to the following topics being covered:

Attentional Bias

Vaping (E-cig)

Bariatric Surgery

Child Nutrition

Circadian Rhythms

Men and Eating Disorders

View last month’s video on Food Politics 

 

Please SIGN UP HERE so you will not miss out on this revolutionary information!

Do you know someone who might be interested in the link between nutrition and mental health or any of the topics mentioned above? Please forward this to them so they can join us and don’t keep us a secret!

Thank you for all your support as we embark on the journey of improving the health and wellbeing of our clients and their loved ones.

Have thoughts about Alcoholic Liver Disease? Reach out to us, we would love to hear your thoughts!

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Nutrition and Mental Health

Nutrition and Mental Health

As a nutrition and dietetics student I developed an interest in the field of behavioral health nutrition. The idea that nutritional deficiencies or a variety of medical disorders could produce symptoms that mimicked psychiatric abnormalities [1] resonated with me early in my academic exploratations. The links between nutrition and mental health appeared to be a promising new area of investigation. In the past decade, research on the gut microbiome has documented compelling evidence that the bacteria flora in our intestines have a direct link to our brain and that these pathways are bidirectional [2]. As a registered dietitian nutritionist (RDN) working with patients with co-existing mental health conditions, I have observed an association between diet and depression. Practice experience has shown that dietary improvement can reduce some depressive symptoms [3]. Given that mental illness is a major public health problem, an emerging field known as nutritional psychiatry has received increased attention [4].

There are established links between depression and chronic diseases such as obesity [5], metabolic syndrome [6], and type 2 diabetes [7]. There are also associations between depressive symptoms and inflammatory bowel disease [8], as well as disordered eating [9]. Recent evidence suggests that altering the composition of the gut microbiome can lead to depressive-like behavior in animal models [10]. Because the human microbiome is highly influenced by foods that we eat, there may be an opportunity to improve depressive-like symptoms through dietary interventions. Randomized controlled human trials have shown that nutrition interventions can provide alternative or adjunct treatment for depression in common conditions such as obesity and type 2 diabetes [11]. The most common dietary recommendation is a Mediterranean-style diet with early trials showing a reduction in depressive symptoms [12,13]. Given the likelihood that nutrition can improve some depression-related symptoms, targeted dietary interventions should be considered a public health priority.

References

  1. Pollak, J., Levy, S., and Breitholz, T., Screening for medical and neurodevelopmental disorders for the professional counselor. Journal of Counseling & Development, 1999. 77(3): p. 35-358.
  2. Evrensel, A., and Ceylan, M.E., The gut-brain axis: the missing link in depression. Clinical Psychopharmacology and Neuroscience, 2015. 13(3): p. 239-244.
  3. Li, Y., et al., Dietary patterns and depression risk: a meta-analysis. Psychiatry Research, 2017. 253: p. 373-382.
  4. Marx, W., et al., Nutritional psychiatry: the present state of the evidence. Proceedings of the Nutrition Society, 2017. doi:10.1017/S0029665117002026
  5. Garcia-Toro, M., et al., Obesity, metabolic syndrome and Mediterranean diet: impact on depression outcome. Journal of Affective Disorders, 2016. 194: p. 105-108.
  6. Ohmori, Y, et al., Associations between depression and unhealthy behaviors related to metabolic syndrome: a cross sectional study. Asia Pacific Journal of Clinical Nutrition, 2017. 26(1): p. 130-140.
  7. Dipnall, J.F., et al., The association between dietary patterns, diabetes and depression. Journal of Affective Disorders, 2015. 174: p. 215-224.
  8. Bhandari, S., et al., Association of inflammatory bowel disease (IBD) and depressive symptoms in the Unites States population and independent predictors of depressive symptoms in an IBD population: a NHANES study. Gut and Liver, 2017. https://doi.org/10.5009/gnl16347
  9. Kim, O. et al., Binge eating disorder and depressive symptoms among females of child-bearing age: the Korea Nurses Health Study. BMC Psychiatry, 2018. 18:13.
  10. Wong, M-L., et al., Inflammasome signaling affects anxiety- and depressive-like behavior and gut microbiome composition. Molecular Psychiatry, 2016. 21: p. 797-805.
  11. O’Neil, A., et al., A randomized, controlled trial of a dietary intervention for adults with major depression (the “SMILES” trial): study protocol. BMC Psychiatry, 2013. 13:114.
  12. Parletta, N., et al., A Mediterranean-style dietary intervention supplemented with fish oil improves diet quality and mental health in people with depression: a randomized controlled trial (HELFIMED). Nutritional Neuroscience, 2017. doi:10.1080/1028415X.2017.1411320
  13. Sanchez-Villegas, A., et al., Mediterranean dietary pattern and depression: the PREDIMED randomized trial. BMC Medicine, 2013. 11:208

 

Nutrition and Mental Health

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From Private Practice to Public Health

David- Tell us more about your background and private practice. Tell us about your current vision, and your decision to get your doctorate.

Five years ago, after completion of my master’s degree in Family and Consumer Sciences and becoming a Registered Dietitian Nutritionist (RDN) I founded a company called Nutrition in Recovery which specializes in treating patients with challenging eating and substance use disorders (SUDs). The group now comprises six RDNs who supervise educational groups at SUD treatment centers throughout Los Angeles. My continuing interest in this patient population led me to develop specialized dietary and educational curriculum for people in early recovery. When possible, I have used evidence-based principles to better manage patients with nutrition-related abnormalities. This has led to three journal publications, two book chapters, two poster exhibits, seven webinars, and over 20 podium presentations. I have also written six articles for the Behavioral Health Nutrition Dietetic Practice Group who recognized my work with the “Excellence in Practice” award presented at the national Food and Nutrition Conference and Expo (FNCE) in October 2017. I have also been a master’s thesis committee member for students enrolled at California State University, Long Beach. What I am particularly proud of is my commitment to research and academics from my private practice setting.

I am finishing my first year as a Ph.D. student in Community Health Sciences at UCLA, hoping to improve the role of nutrition interventions in patients with various SUDs. My overall goal is to reduce the incidence of disordered eating in early recovery and to improve the quality of life for patients with disabling addictive disorders.  SUDs are associated with malnutrition, preference for nutrient-poor food, compromised gastrointestinal health, and disordered eating. Given the current addiction epidemic, consideration should be given to prioritizing efforts to improve eating habits and overall health in recovery programs. Nutrition interventions during recovery may promote abstinence and prevent or minimize the onset of chronic illness including eating disorders (EDs). Currently there is an urgent need for improved treatment modalities for SUDs to prevent overdose and death, reduce healthcare burden, and to improve quality of life. Nutrition protocols in SUD treatment are not widely utilized. My goal is to develop evidence-based guidelines for nutrition interventions for various addictive disorders, which will hopefully lead to better policies and procedures.

Introducing the concept of food and nutrition into an SUD treatment program faces many obstacles. Many patients in early recovery are not ready for multiple health behavior changes, since most are simply trying to get past the immediate crisis of addiction and the associated life adjustments of abstinence. In several of the treatment centers where I work, patients are surprised when they discover that making small nutritional changes (such as drinking water or eating breakfast) can impact energy levels, overall sense of wellness, and optimism about being sober. There are numerous questions that relate to food, SUDs, disordered eating, and recovery that remain unanswered. Can nutrition be used to improve SUD outcomes? What is the best practice for treating co-occurring eating and substance use disorders? How can RDNs help with recovery from mental health disorders? What policy implications can address food addiction on a societal level? What new programs can be developed for underserved populations that struggle with SUD and nutrition-related challenges?

My goal in pursuing a doctorate in public health is to produce data that guides treatment. I am confident that my work in this area will create better evidence to improve funding for nutrition services, creating opportunities for dietitians to work in publicly-funded as well as underserved SUD treatment centers. RDNs desperately need more evidence of effectiveness in order to advance our profession. With new information, it may be possible to change the way we approach SUD treatment, but more importantly to improve the recovery process amidst the current opioid crisis.

About Nutrition in Recovery

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