5
Macronutrients, satiety, and blood sugar stability (protein, fiber, fats, carbs)
6
Micronutrients tied to cognition and mood (iron, zinc, magnesium, iodine, folate, B12, vitamin D)
7
Gut-brain basics (microbiome, inflammation, GI symptoms, food intolerance vs allergy)
8
Food labels and ingredient literacy (added sugars, fiber, dyes, caffeine, emulsifiers, sweeteners)