Explainers
Plain-language deep dives for public audiences
Caffeine Does Not Create Energy—It Masks Fatigue, Study Shows
Caffeine does not produce energy but instead blocks the brain's fatigue signals, allowing tiredness to accumulate invisibly. Genetic variation in…
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How Two Minerals Lock Down Brain Anxiety: Magnesium and Zinc’s Dual Control of Neural Excitation
The brain's primary anxiety-regulating system relies on two independent mineral-based brakes: magnesium physically blocks the NMDA receptor's ion channel pore,…
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Vitamin D3 + K2: Absorption vs Direction — How the Pairing Works
D3 decides how much calcium enters the body; K2-activated proteins influence where it ends up.…
Who Is at Risk of B12 Deficiency: Older Adults, Vegans, Metformin and PPI Users
B12 deficiency clusters in four predictable groups — and its cruellest feature is that irreversible…
All-trans vs Cis MK-7: The Isomer Problem Most Supplement Labels Hide
Two MK-7 molecules can share a label claim while only one works: the all-trans isomer…
MK-7 vs MK-4: Why Half-Life Decides the Dose
Two menaquinones, one decisive number: MK-4 vanishes from blood in hours while MK-7 circulates for…
Why Exactly 100% NRV: Vitamin A’s Narrow Safety Margin Explained
For most vitamins, the gap between daily reference and safety ceiling is vast. For vitamin…