Nutrition and Autoimmunity: NIH NOURISH Challenge
The National Institutes of Health (NIH) has launched the NOURISH (Nutrition for OUR Immune System Health): Autoimmunity Challenge, a crowdsourcing competition offering up to $150,000 in prizes. The challenge is open through December 4, 2025, and aims to gather innovative, community-driven ideas about how diet and nutrition can be better studied in autoimmune disease research.
The challenge focuses on three big questions:
- How diet contributes to autoimmune onset and prodrome
- How nutrition influences disease progression and flares
- The role of diet in symptom management
At GAI, we’ve published extensively on diet, nutrition, and immune health. Below is a collection of our articles and research updates, grouped to match the challenge’s themes. These can serve as background or inspiration for anyone considering a submission.
Diet and Autoimmune Onset Risk
Challenge question: What role does diet play in the early phases of autoimmunity, before a disease is fully established?
- How Diet Impacts Autoimmunity – Explores how nutrients and dietary patterns, like the Mediterranean diet, influence immune signaling, inflammation, and thyroid health. Highlights links between iodine intake and thyroid autoimmunity, and early research into compounds like yerba mate in multiple sclerosis.
- Beyond Genes and Smoking: 5 More Triggers – Identifies diet as one of several interacting risk factors alongside pathogens, dysbiosis, toxins, and stress. Explains mechanisms such as molecular mimicry and how processed foods can increase intestinal inflammation.
- What Is the Microbiome and Why Is It Important? – Provides an introduction to the human microbiome and its role in immune regulation, digestion, and disease susceptibility. Reviews evidence of reduced microbial diversity in autoimmune conditions like Crohn’s and ulcerative colitis.
- Pesticide Use & the Gut Microbiome – Examines how agricultural chemicals disrupt microbial balance, increasing autoimmune risk. Reviews evidence linking pesticides to lupus, rheumatoid arthritis, systemic sclerosis, and thyroid disease. Offers dietary strategies like fiber and fermented foods to support gut resilience.
- What Does “Organic” Really Mean? – Explains the USDA certification process, the history of organics, and the limits of the label. Clarifies how organic farming differs from conventional methods in pesticide use, soil health, and sustainability.
- Is Organic Food Better for Autoimmune Health? – Explores whether eating organic lowers autoimmune risk. Highlights research on molecular mimicry in food proteins, the role of chemical additives, and evidence that lower toxic exposures may reduce immune activation.
Dietary Contributors to Autoimmunity & Flares
Challenge question: How do diet and nutrition contribute to worsening disease activity or triggering flares?
- How Diet Impacts Gut Immunity and Autoimmune Disease Risk – Summarizes findings from the NIH workshop on diet and mucosal immunity. Emphasizes how early dietary exposures and metabolites shape immune responses, and why standardized diet definitions are crucial for research.
- Can Diet Repair Gut Damage from Antibiotics? – Explains how high-fiber diets help the gut microbiome recover after antibiotic use, reducing risks of prolonged dysbiosis linked to autoimmune flare susceptibility.
- Is Your Oral Microbiome Fueling Autoimmune Disease? – Investigates the role of oral dysbiosis in systemic autoimmunity. Details mechanisms like microbial translocation, molecular mimicry, and citrullination (linked to rheumatoid arthritis).
- Gut-Skin Connection: How Your Microbiome Impacts Autoimmune Skin Diseases – Reviews evidence for the gut-skin axis in diseases like psoriasis, lupus, atopic dermatitis, and vitiligo. Highlights how diet shapes microbial metabolites that may trigger skin inflammation.
Dietary Strategies for Autoimmune Disease Management
Challenge question: Can dietary strategies help patients manage symptoms and improve quality of life?
- Elimination Diets: What You Need to Know – Provides a practical guide to elimination diets, describing how they can uncover food triggers in autoimmune conditions, their benefits, risks, and common protocols like AIP, SCD, and low-FODMAP.
- What Is Processed Food? – Defines levels of food processing, reviews evidence linking ultra-processed foods to inflammation and microbiome disruption, and offers tips for making healthier choices.
- Culinary Medicine, Autoimmunity, and Healthful Eating – Explains how practical cooking approaches, including Mediterranean and AIP diets, can reduce inflammation, ease symptoms, and make nutrition changes sustainable.
- Probiotics, Prebiotics, and Autoimmune Disease – Reviews the scientific evidence for microbial therapies across autoimmune diseases, including RA, IBD, MS, and lupus. Highlights both promise and limitations of probiotic and prebiotic use.
- The Relationship Between Autoimmune Disease and the Gut Microbiome – Explores how dysbiosis links to lupus, IBD, type 1 diabetes, MS, and RA. Discusses whether restoring balance through diet or other interventions could reduce symptoms.
The NOURISH Challenge is about ideas, not clinical trials, but the right ideas could shape the next decade of NIH research. These resources offer science-based insights for anyone looking to think creatively about the role of diet in autoimmunity.