Blog posts:

Evidence-based articles about fitness, nutrition and supplements.

Vitamin D for Athletes: What the Evidence Really Shows on Bones, Strength and Immunity

Vitamin D for athletes is mostly a deficiency story, not a booster. What the studies show on bones, strength, infections and safety, and where high doses turn risky.

Drinking During Training: How Water, Salt and Performance Really Connect

How much should you drink during exercise, and when do you need salt with it? Blanket litre guidelines miss the mark, while personal sweat rate and sodium loss matter far more. What current evidence shows about thirst, scheduled drinking and hyponatremia.

May 18, 2026

Few vs. Many Sets: What Actually Happens When You Double Your Training Volume

Are 5 sets per muscle per week enough, or do you need 20? What the meta-analyses on hypertrophy and strength dose-response really show, where junk volume starts, and why strength saturates much earlier than muscle.

Apr 8, 2026

NAD+ Precursors vs. B Vitamins: What's the Better Boost for Your Health?

NAD+ precursors like NMN and NR directly boost cellular NAD+ levels, while B vitamins offer broader metabolic support. Discover the key differences.

Feb 8, 2025

Should I supplement protein powder or not?

Protein is essential for muscle growth and recovery. But do you really need protein powder or is a balanced diet enough?

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