Jillian Michaels on 'Anti-Nutrients': warns against

Jillian Michaels’s never-eat list from her Master Your Metabolism doctrine includes what she calls “anti-nutrients”: hydrogenated fats, refined grains, high fructose corn syrup, artificial sweeteners, artificial coloring and preservatives, nitrates and nitrites, glutamates, foods from hormone/antibiotic-treated animals, and pesticide-treated foods, per an excerpt of the book.

Her stated reasoning, as presented in the book, is metabolic: she frames these ingredients and production methods as endocrine- and metabolism-disrupting, making them incompatible with her fat-loss framework regardless of calorie count. The list is one of her longest-standing doctrinal positions, predating her 2026 media commentary.

This page chronicles a stated position of the person above. It is not medical advice and not the site's own conclusion.