Science hub

Evidence table: nutrient content documented, human trials limited, no authorised health claim

Bovine organ extracts: what the research does a...

Organ meat is a nutrient-dense food. A 250 mg freeze-dried extract is a different thing. What is documented, what is not, and why we make no claim for it.

Bovine organ extracts: what the research does a...

Organ meat is a nutrient-dense food. A 250 mg freeze-dried extract is a different thing. What is documented, what is not, and why we make no claim for it.

Chart of the months in the UK, October to March, when sunlight is not enough for vitamin D

Vitamin D in the UK: why October to March matters

From about October to March, UK sunlight is too weak for your skin to make vitamin D. What that means, what official advice says, and how doses compare.

Vitamin D in the UK: why October to March matters

From about October to March, UK sunlight is too weak for your skin to make vitamin D. What that means, what official advice says, and how doses compare.

Chart: 5% of a 300 mg ashwagandha root extract is withanolides, 15 mg

Ashwagandha root extract: what “5% withanolides...

“5% withanolides” is a standardisation figure. Here is what it measures, what it leaves out, and the questions worth asking before you trust it.

Ashwagandha root extract: what “5% withanolides...

“5% withanolides” is a standardisation figure. Here is what it measures, what it leaves out, and the questions worth asking before you trust it.