Digestion
Bioavailability: Why Eating a Nutrient Doesn't Mean Absorbing It
Bioavailability is how much of a nutrient your body actually absorbs and uses. It explains why the numbers on a nutrition label don't tell the whole story.
IntermediateHow Carbohydrate Metabolism Works: From First Bite to Fuel
How carbohydrate digestion and metabolism works: amylase, GLUT transporters, glycolysis, glycogen storage, and when excess carbs become body fat.
IntermediateHow Digestion Works: From First Bite to the Colon
How digestion works from mouth to colon: amylase, pepsin, HCl, pancreatic enzymes, bile, intestinal villi, and what actually happens to food at each stage.
BeginnerHow to Increase Fiber Without Bloating: A Stepwise Plan That Actually Feels Sustainable
A practical week-by-week fiber plan that improves diet quality while minimizing common GI side effects.
BeginnerIBS-Friendly Default Meal Guide: Build Stable Baselines First
A practical baseline meal framework for users trying to reduce GI variability with consistent routines.
BeginnerLow-Lactose Dairy Strategy Guide: Keep Nutrition, Reduce Symptoms
A practical approach for users who want to keep dairy options while reducing lactose-related discomfort.
BeginnerNutrition Science Explained: How Food Actually Works in Your Body
How nutrition works in the body, from digestion to absorption. Covers macronutrients, micronutrients, the gut microbiome, and how nutrition research actually works.
BeginnerPapaya Nutrition: Vitamin C Density, Digestive Enzymes, and Ripeness
Papaya is a high-vitamin-C fruit with carotenoids and digestive-enzyme context that is often overhyped online.
BeginnerProtein Absorption: How Much Can Your Body Actually Use?
The '30g protein per meal' myth explained: what your body actually does with protein, how protein quality is scored, and how much you actually need.
IntermediateThe Low-FODMAP Diet: The Science Behind the IBS Approach
How FODMAPs trigger IBS symptoms, why the low-FODMAP diet works in three phases, and why the strict elimination stage is meant to be temporary, not forever.
Intermediate