HAVIT Blog
Guides fondés sur la science pour les habitudes, le sommeil, la nutrition et le mouvement.
Récents · 61 articles
How Alcohol Drains Your Body of Essential Nutrients (And What Actually Helps)
Alcohol systematically depletes B1, B6, B12, folate, magnesium, and zinc—strategic replenishment timing matters more than random supplement popping.
Anti-Nutrients in Your Spinach and Beans: Should You Actually Worry About Phytates and Oxalates?
For most people eating varied diets, anti-nutrients pose minimal real-world risk—and the foods containing them deliver benefits that far outweigh any absorption reduction.
Phytates and Oxalates: Why Your Spinach Salad Might Be Stealing Your Iron
Anti-nutrients in healthy foods can block mineral absorption, but simple preparation methods like soaking beans overnight or cooking spinach can dramatically reduce their impact.
Apple Cider Vinegar for Blood Sugar and Weight Loss: What 47 Studies Actually Show
Apple cider vinegar shows modest but real effects on post-meal blood sugar (up to 30% reduction) and small weight loss benefits, but only under specific conditions.
Why Your Friend Can Drink Diet Coke Daily While It Spikes Your Blood Sugar
Your gut bacteria determine whether artificial sweeteners raise your blood sugar—and responses vary wildly between individuals.
Artificial Sweeteners and Your Gut Microbiome: What 2025 Research Reveals About Glucose Response
Recent research suggests certain artificial sweeteners can change gut microbiome composition and may impair glucose tolerance in some people—but individual responses vary dramatically.
Beta-Glucan for Cholesterol: Why 3 Grams Daily Is the Magic Number (And How to Actually Get It)
Consuming 3 grams of beta-glucan daily from oats or barley can reduce LDL cholesterol by 5-10%, equivalent to about 1.5 cups of cooked oatmeal.
Bone Broth Health Claims vs. Science: What 2026 Research Actually Shows
Bone broth contains beneficial compounds like collagen and glycine, but most dramatic health claims far outpace the current scientific evidence.
Skipping Breakfast: Metabolism Killer or Intermittent Fasting in Disguise?
Skipping breakfast doesn't inherently harm metabolism—but when you eat your other meals determines whether it helps or hurts.
Caffeine Half-Life and Sleep: How to Calculate Your Personal Cutoff Time
Your caffeine cutoff time depends on your personal half-life (3-9 hours)—most people should stop 8-10 hours before bed, but genetics can shift this by hours.
Choline Deficiency Symptoms: Why 90% of Adults Miss This Brain-Liver Nutrient
Most adults get less than half the choline they need, which quietly damages liver and brain function—eggs and liver are the fastest fix.
Choline Deficiency Is Probably Affecting Your Brain Right Now (Here's How to Fix It)
Most people are choline-deficient without knowing it, and your brain pays the price—but strategic food choices beyond eggs can close the gap.