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When a "natural" supplement is not: red yeast rice and the four questions before you buy any supplement
Supplements Ranulf Crooke Supplements Ranulf Crooke

When a "natural" supplement is not: red yeast rice and the four questions before you buy any supplement

In 2024, more than 100 people in Japan developed a serious form of kidney injury that prevents the kidneys reabsorbing glucose, amino acids, and phosphate from the urine, a condition called Fanconi syndrome. At least 76 of them died. The product was beni-koji, a fermented rice supplement sold by Kobayashi Pharmaceutical for cholesterol support.

The story did not travel widely outside Japan. In the supplement aisles of London, New York, or Milan, very little visibly changed. The product family that contains beni-koji, rice fermented with moulds of the Monascus genus, is sold across most Western markets under different names and different specifications. The most common cousin is red yeast rice, marketed as a "natural" cholesterol-lowering supplement.


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NAD⁺ in humans: can you raise it and does it matter clinically
Supplements, Ageing Ranulf Crooke Supplements, Ageing Ranulf Crooke

NAD⁺ in humans: can you raise it and does it matter clinically

NAD⁺ biology is strong.

That is exactly why the marketing gets ahead of the evidence.

Human trials show you can raise a blood marker.

They do not yet show reliable functional benefit in healthy older adults.

IV NAD⁺ sits lowest on the evidence ladder, despite the loudest claims.

The science behind NAD⁺ and ageing is genuinely interesting. That is part of the problem.

NAD⁺ has become one of the most talked about ideas in longevity. NAD⁺ is not a single-purpose molecule. At the most basic level, it helps cells turn food into usable energy. 

But it also does more than that. 

It is linked to aging in several critical ways: 

  1. to repair damage that accumulates in your DNA every day

  2. to power a family of proteins (sirtuins) that regulate how genes are read 

  3. mitochondrial dysfunction

  4. chronic inflammation 

The theory goes that NAD⁺ falls with age, supplements raise it, and raising it should improve energy, metabolism, brain function, and slow down the ageing process.

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Creatine for female health: Don’t fall into the trap of thinking it’s just for elite athletes

Creatine for female health: Don’t fall into the trap of thinking it’s just for elite athletes

Once seen as a supplement exclusively for male bodybuilders, creatine is so much more than a tool for athletic performance. The latest research is revealing its powerful benefits for a much broader audience, especially women. From boosting brain health and mood to strengthening bones and muscles, creatine offers a wide range of benefits that can support a healthy, high-performing life. Dr Ran Crooke looks at the science behind creatine and explores why it's a game-changer for women at every stage of life.

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The NAD+ Puzzle: Why Lifestyle Still Trumps Supplements
NAD+, Supplements, Holistic Health, Longevity WellFounded team NAD+, Supplements, Holistic Health, Longevity WellFounded team

The NAD+ Puzzle: Why Lifestyle Still Trumps Supplements

The longevity industry is mesmerised with NAD+. We see IV drips and expensive supplements everywhere.

But what if the key to cellular energy, resilience, and peak performance isn't in a bottle, but in your daily habits?

This week, Dr Andrew breaks down the science of NAD+ and reveals why lifestyle surpasses supplements every time.

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