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Evidence-based supplement guides

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Plain-English guides written by people who read the studies. No hype, no affiliate-driven nonsense β€” just the evidence.

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25 articles in β€œVitamins & Minerals”

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Evidence-based supplement insights β€” no hype, just the science

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Vitamins & Minerals

Magnesium Glycinate vs Citrate vs Oxide: Which Form Should You Take?

Not all magnesium supplements are created equal. The form you choose dramatically affects how much your body actually absorbs β€” and what symptoms it helps with.

25 May 20267 min read
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Vitamins & Minerals

Magnesium Forms Compared: Glycinate vs Malate vs Threonate vs Oxide

Magnesium oxide is the most common form in cheap supplements but has the worst absorption. The right magnesium form can make a significant difference to what you actually get from it.

23 May 20266 min read
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Vitamins & Minerals

Biotin for Hair Growth: What the Evidence Actually Shows

Biotin is the most purchased hair supplement in the UK. The evidence is more nuanced than the marketing suggests, but there are genuine benefits for specific populations. Here is the honest picture.

21 May 20265 min read
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Vitamins & Minerals

Vitamin B12 Deficiency: Signs, Tests and the Right Supplement Form

B12 deficiency develops slowly and early symptoms are easily dismissed as stress or tiredness. Left unchecked it can cause irreversible nerve damage.

19 May 20265 min read
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Vitamins & Minerals

Vitamin K2: The Missing Link in Bone and Heart Health

Most people get enough K1 from vegetables but K2 is different. It tells calcium where to go, and most of us are not getting nearly enough.

8 May 20265 min read
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Vitamins & Minerals

Zinc Deficiency: Who is at Risk and Why Athletes Need More

Zinc is an essential cofactor in over 300 enzymes. Subclinical deficiency is widespread among vegans, athletes and older adults in the UK.

18 Apr 20264 min read
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Vitamins & Minerals

EPA vs DHA: Which Omega-3 Do You Actually Need?

Fish oil contains two distinct compounds with different biological effects. Understanding EPA vs DHA helps you choose the right product.

25 Mar 20264 min read
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Vitamins & Minerals

Why Every UK Adult Should Supplement Vitamin D from October to March

Living above 52 degrees N latitude means UK residents cannot synthesise vitamin D from sunlight for 6 months. Here's what to do.

15 Mar 20264 min read
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Vitamins & Minerals

7 Signs You're Magnesium Deficient β€” And How to Fix It

Over 70% of UK adults don't get enough magnesium. Here are the telltale symptoms and the best form to supplement.

10 Mar 20264 min read
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Vitamins & Minerals

Constantly Tired? The Best Supplements for Energy and Fatigue (UK Guide)

Constantly Tired? The Best Supplements for Energy and Fatigue UK Guide Fatigue is one of the most common complaints in UK general practice, but most GP appointments end without a clear diagnosis. If blood tests have ruled out thyroid disease,...

24 Feb 20268 min read
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Vitamins & Minerals

Vitamin C and Immunity: What the Evidence Actually Shows

Vitamin C and Immunity: What the Evidence Actually Shows Vitamin C is the world's most popular supplement. It's also one of the most misunderstood. The belief that megadosing vitamin C prevents colds has been tested in more clinical trials than...

26 Dec 20258 min read
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Vitamins & Minerals

Vitamin B12 Deficiency in the UK: Symptoms, Causes, and How to Fix It

Vitamin B12 Deficiency in the UK: Symptoms, Causes, and How to Fix It Vitamin B12 deficiency is one of the most common β€” and most missed β€” nutritional deficiencies in the UK. An estimated 6–10% of British adults are deficient, with rates approaching...

21 Nov 20258 min read

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