Vitamins & minerals
Calcium and vitamin D supplements: how the pair is discussed, and where caution matters
A careful guide to calcium and vitamin D, food sources, bone health, combined labels, kidney questions and when professional advice matters.
Vitamins & minerals
Supplements guides on vitamins & minerals.
Useful supplements guides
Explainers worth bookmarking, kept up to date.
Iron supplements: why more is not automatically better
A practical, evidence-led guide to low iron, anaemia, food sources, supplement side effects and why the cause of low iron matters.
Magnesium supplements: does the form matter?
A clear guide to magnesium forms, food sources, label language, side effects and the situations that deserve professional advice.
Vitamin B12 supplements: who is more likely to need one?
A clear guide to vitamin B12, dietary risk, absorption, medication context and the limits of ‘energy’ supplement claims.
Vitamin D supplements: who may need them, what tests can and cannot tell you
A calm guide to vitamin D supplements, blood tests, food and sunlight, safety limits, and the questions worth taking to a clinician or pharmacist.
Less hype, more clarity.
How we work
PLENTIST explains what the evidence supports, says clearly where it is thin, and keeps every guide practical enough to use this week.
- Clear about sourcesWe favour official guidance and strong research, and aim to list key sources so you can check them yourself.
- Clearly datedEach guide shows when it was published or last updated, and we correct errors openly.
- No miracle claimsWe don’t sell supplements, and we say so when something is overhyped.