Evidence-Based Health & Nutrition Articles
Plain-English guides to collagen, supplements, everyday nutrition and ageing well — each one sourced to named institutional research and dated.
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Convert micrograms to IU, tell D3 from D2, read drops and sprays, and understand why % NRV and % DV differ, so you can compare vitamin D labels fairly.
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Buying supplements from overseas? Check the label, the real delivered cost and your country’s import rules first. A step-by-step guide with a checklist.
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How to choose a cold plunge studio or cryotherapy chamber safely: formats compared, hygiene, supervision, screening, FDA position and who should ask a doctor first.
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A line-by-line walkthrough of a supplement label: serving size, amounts, %DV and NRV, elemental minerals, blends, other ingredients, dates and seals.
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Why 500 mg of magnesium oxide and 500 mg of glycinate hold very different amounts of magnesium, how to find the elemental figure, and what to check first.
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Find EPA and DHA on any omega-3 label, check serving size, work out cost per 1,000 mg, and know what to check on cod liver, algae and plant oils.
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What USP Verified, NSF Certified for Sport and Informed Sport actually check, how to confirm a seal on the register, and when a seal is worth paying for.
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How much protein you need after 40: official figures vs expert advice compared, a worked example, meal ideas, strength work, and who needs individual advice.
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Which sleep changes are a normal part of ageing and which are worth a GP visit, plus the simple habits with the best evidence and a two-week sleep reset.
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What alternating hot and cold water does, what the evidence shows for soreness, how home set-ups compare, and a cautious step-by-step routine.