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Two bottles, two front labels, no answer. How to read EPA and DHA, what fish, krill and algae oils differ in, and what trials show outcome by outcome.

Fitness and nutrients

Oct 12, 202617 min read

Vitamin D in the Netherlands and Europe: Who Is Advised to Supplement and What the Numbers Mean

Dutch and EU vitamin D advice by group, EFSA's upper limit, D2 vs D3, and what blood-test levels mean according to named guidelines.

Fitness and nutrients

Oct 12, 2026

13 min read

Protein and collagen: what are you actually buying?

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.

Gaming, focus and energy

Oct 12, 202611 min read

Guarana and yerba mate: caffeine in different packaging?

Guarana and yerba mate are both caffeine sources. What is documented about each, how to read the numbers, and the caffeine, sleep and mate safety points.

Gaming, focus and energy

Oct 12, 202612 min read

Gaming Supplements vs Energy Drinks vs Coffee: What Each One Actually Gives You

Coffee, energy drinks, caffeine pills and a gaming tablet compared by caffeine per portion, sugar, sleep and what small gaming trials show.

Editorial illustration of oats, yoghurt and varied plant foods; not a product efficacy comparison.

Gut Health

Oct 6, 202612 min read

Probiotics, prebiotics and postbiotics: what each term means

Probiotic, prebiotic, postbiotic and fermented food explained: the consensus definitions, where evidence exists, how to read a pack and who should ask first.

Conceptual illustration of mineral textures in three dishes beside a capsule; not a form-identification chart.

Wellness

Oct 6, 202611 min read

Magnesium forms: what's actually different?

One capsule: 893 mg of compound, 125 mg of magnesium. How forms differ in magnesium per gram, absorption and gut effects, and what labels only imply.

Editorial illustration of a supplement bottle, checklist and magnifying glass.

Wellness

Oct 6, 20267 min read

How to evaluate supplements: an evidence-led guide

A reusable checklist for judging any supplement: need, evidence, product quality, EU and Dutch rules, safety with medicines and a decision record.