Magnesium glycinate in the evening
The shortfall is common and the glycinate form earns its place at bedtime.
Recommended“Most modern diets run short of magnesium, and glycinate is the form that tops people up without sending them to the bathroom.”
High-dose zinc, long term
Past 40mg a day, zinc quietly costs you copper; our sources say skip.
Our sources say skipTaken daily above 40mg without copper awareness.
The strongest voice
“Zinc and copper share a doorway into the body. Push zinc hard for months and you can quietly walk yourself into a copper deficiency anaemia.”
In their own words
One faithful sentence per source, linked to the moment it was said; quiet chips mark where money is involved.
a clinical biochemist against
“Case reports of zinc-induced copper deficiency are consistent and avoidable; the mechanism is textbook.”
a clinical biochemist · lecture · 00:43:29
a GP against
“Short courses for a cold are one thing; a year of 50 milligrams daily is a different decision entirely.”
a GP · interview · 00:19:44
a nutrition science PhD conditional
“If a genuine deficiency is confirmed, supervised repletion with copper alongside makes sense.”
a nutrition science PhD · podcast episode · 01:02:57
Worth discussing with your GP, especially if you take medication or are pregnant. Entrain describes what is publicly taught; it does not prescribe.
More from minerals and nutrients
Ferritin targets above the lab minimum
Our sources are genuinely split on the target, and united that the lab floor sits too low.
Genuinely contested“A ferritin of 20 is inside the reference range and still compatible with feeling dreadful. For fatigued menstruating women I want to see it comfortably higher.”
Shilajit for mineral repletion
An early signal, interesting but thin; quality-tested or not at all.
An early signal“The fulvic acid chemistry is interesting and the traditional use is long, but the human trials are small and the quality control question is very real.”