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Stretch Marks: Prevention and Treatment, What Science Really Says
A dermis injury, not surface dryness. Six trials, 800 women, no quality evidence for creams, and the two best-selling ingredients explicitly ineffective.

Berberine: Dangers, Side Effects and Interactions You Need to Know
Berberine owes its popularity to a rare quality: it actually works, and that is precisely what demands caution. Digestive side effects and how to reduce them, drug interactions via CYP3A4 and P-gly...

Plant-Based Proteins: As Effective as Animal Proteins?
Yes, with three conditions. The myth of incomplete protein, the limiting amino acid, leucine, and why the authorized claim does not distinguish the source.

Back-to-School Fatigue: Where It Comes From and What Really Helps
Three causes, no deficiency. A fixed wake-up time and morning light before any supplement, the list of nutrients with authorized fatigue claims, and why vitamin D is not part of it.

Lion's Mane (Lion's Mane): Dangers, Side Effects and Precautions
Lion's mane is one of the best-tolerated mushrooms in clinical trials: 16 weeks at 3 g per day with no adverse effects on examination. However, an honest safety profile exists: mushroom allergy (th...

Shiitake: Dangers, Flagellate Dermatitis and Side Effects
A linear streak rash linked to lentinan, a compound destroyed by heat. Benign, spectacular, and entirely preventable through sufficient cooking.

Reishi: Dangers, Side Effects and Contraindications
Well tolerated on its own, but problematic depending on what you take alongside it: anticoagulants, scheduled surgery, antihypertensives, antidiabetics, and immunosuppressants.

Chaga: Dangers, Side Effects and Contraindications
Three published clinical cases, including one of end-stage renal failure, at doses of 10 to 15 g per day over several months. The mechanism, risk profiles, and usage guidelines.

Glycine and Sleep: What the Research Actually Shows
We fall asleep because we cool down: the proposed mechanism, the three reference trials, the 3 g protocol at 30-60 minutes, and the frankly stated limitations.

Glycine: Benefits, Sleep and Dosage, the Complete Guide
Real studies on sleep at 3 g, a major physiological role in collagen, and zero authorized claims in Europe: the entire subject comes down to this gap.

Marathon: What Nutrition and Supplements to Perform at Your Best?
Why the wall exists, how many carbs per hour, how to train your gut, and the four families of supplements with authorized claims for this distance.

How to Best Prepare for Your Marathon: The Complete Guide
Run slowly to go fast and start gently to finish strong: volume, three key sessions, 16-week plan, tapering and pacing strategy.

Trail: What Nutrition to Go the Distance?
Elevation gain, duration, and semi-autonomy: eat on the way up, drink on the way down, vary before losing your appetite, and never neglect sodium.

How to Properly Prepare for Your First Trail: The Complete Guide
It's the descents that matter, not the climbs: elevation gain, eccentric work, brisk walking, backpack and gear, 16-week plan and race management.

NMN: The Complete Guide (NAD, Human Studies, Safety and Status)
NAD precursor, approximately fifteen randomized trials, an established effect on blood NAD levels, and a gap with longevity promises: the state of knowledge, without advocacy.

NMN: Why Is It Banned in France, and Where Does Regulation Stand?
Novel food status, favorable EFSA opinion in May 2026, Commission authorization still awaited, and the contrast with nicotinamide riboside authorized since 2020.

How to Properly Prepare for Your Hyrox: The Complete Guide
Degraded course, roxzone, grip management and start pace: the levers that decide a time trial, with a structured 12-week plan and a written race strategy.

Hyrox: Which supplements for peak performance? (2026 guide)
The effort profile of the 8 stations, the four ingredients with authorized claims, the gray area to know about, and a four-phase protocol from preparation to recovery.

Magnesium Bisglycinate, Citrate or Marine: Which One to Choose?
Bisglycinate, citrate, marine, malate: the comparative guide to magnesium forms based on the three criteria that matter, with the selection grid by profile.

Magnesium and Vitamin D: Should You Take Them Together?
The real biochemical link between magnesium and vitamin D, their complementary roles according to authorized claims, and the practical guide for taking them together.
