Blog

Protein norms, whey versus plant, and what collagen trials show for skin, joints and tendons, with funding noted and Dutch guidance for when a tub isn't needed.

Fitness and nutrients

Oct 12, 2026

13 min read

Electrolytes: what is in the mix?

Do you need to put the salt back? Sodium, potassium, magnesium and chloride explained, the overdrinking risk, and a worked label example.

Fitness and nutrients

Oct 12, 202614 min read

Creatine: strength, running and the actual question

Which kinds of effort creatine helps, what the evidence says about running and endurance, and where the kidney, hair and focus questions stand.

Sleep

Oct 12, 202619 min read

Sleep supplements: ingredients before the promise

Sleep supplements decoded: what the label lists, what studies say each ingredient does for sleep, and what NL/EU rules allow, with dated brand labels.

Sleep

Oct 12, 202613 min read

Melatonin: timing, labels and the questions to ask

What melatonin does, which amounts and timings studies and regulators report, how labels compare, and what to ask a label. No personal doses.

Sleep

Oct 12, 202611 min read

Magnesium and sleep: what is the connection?

Does magnesium help sleep? A plain look at the small, low-certainty evidence, EU and UK intake limits, and diarrhoea, kidney and medicine cautions.

Sleep

Oct 12, 20269 min read

Glycine and sleep: small studies, useful questions

How glycine got a sleep reputation: small trials of about 3 g before bed, what the reviews say, and what to check on a label and with medicines.

Sleep

Oct 12, 202610 min read

5-HTP for sleep: what it is, what the research covers and what to check first

5-HTP shows up on some sleep labels. What the small human studies cover, and the interaction and safety points worth reading first.

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