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BestCapsules

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Say what you want help with. The finder shows what the GB register lets any seller claim for it, what the register assessed and refused, and the cheapest capsules per capsule for each ingredient. It quotes; it never advises.

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Where the register allows less than sellers suggest

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Name it and the finder says whether the register authorises any claim for it for your goals, or refused one, or has never assessed it.

  • None yet. Type an ingredient in the box above, for example “magnesium” or “turmeric”.

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Seller-stated only: vegan means the seller says vegan.

Joints and Heart and Muscles

1561 capsules across 87 ingredients

Joints. Joints carry the largest set of refused claims in the register: glucosamine, chondroitin, MSM, turmeric and collagen-for-joints wording were all assessed and turned down. What is authorised is narrow and quoted exactly on the ingredient pages: vitamin C for normal collagen formation for the normal function of cartilage, and manganese for normal formation of connective tissue. Versus Arthritis is the specialist charity for anything beyond nutrition.

Heart. This page collects ingredients whose register claims relate to the heart, blood pressure or cholesterol, quoted exactly. Diet, movement and prescribed medication come first in this area, and the British Heart Foundation below is the specialist charity for reliable information.

Muscles. Ingredients here hold register claims relating to normal muscle function or muscle protein, quoted exactly on their pages. Resistance exercise and overall protein intake are the fundamentals the claims assume; the NHS exercise guidance below is a good starting point.

Nothing here is medical advice. The wording is the GB register's, quoted exactly; whether a product qualifies to use it is the seller's responsibility. Speak to a GP or pharmacist before taking a supplement, especially if you are pregnant, take medicines or have a diagnosed condition. Wording from the GB nutrition and health claims register; mapping reviewed 4 September 2026.

Holds an authorised claim

Magnesium

1 authorised claim · 257 capsules · ingredient page
  • “Magnesium contributes to normal muscle function” · Muscles

Not authorised for heart: the register refused 3 claims there.

All 257 magnesium capsules

Vitamin C

2 authorised claims · 238 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of blood vessels” · Heart
  • “Vitamin C contributes to normal collagen formation for the normal function of cartilage” · Joints

All 238 vitamin c capsules

Vitamin D

2 authorised claims · 172 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal muscle function” · Muscles
  • “Vitamin D helps to reduce the risk of falling associated with postural instability and muscle weakness. Falling is a risk factor for bone fractures among men and women 60 years of age and older.” · Muscles

All 172 vitamin d capsules

Vitamin B6

1 authorised claim · 144 capsules · ingredient page
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Heart

All 144 vitamin b6 capsules

Vitamin B12

1 authorised claim · 123 capsules · ingredient page
  • “Vitamin B12 contributes to normal homocysteine metabolism” · Heart

All 123 vitamin b12 capsules

Folate

1 authorised claim · 104 capsules · ingredient page
  • “Folate contributes to normal homocysteine metabolism” · Heart

All 104 folate capsules

Calcium

1 authorised claim · 76 capsules · ingredient page
  • “Calcium contributes to normal muscle function” · Muscles

Not authorised for heart: the register refused 2 claims there.

All 76 calcium capsules

Copper

1 authorised claim · 42 capsules · ingredient page
  • “Copper contributes to maintenance of normal connective tissues” · Joints

Not authorised for heart: the register refused 1 claim there.

All 42 copper capsules

Choline

1 authorised claim · 36 capsules · ingredient page
  • “Choline contributes to normal homocysteine metabolism” · Heart

All 36 choline capsules

Manganese

1 authorised claim · 28 capsules · ingredient page
  • “Manganese contributes to the normal formation of connective tissue” · Joints

All 28 manganese capsules

Potassium

2 authorised claims · 25 capsules · ingredient page
  • “Potassium contributes to the maintenance of normal blood pressure” · Heart
  • “Potassium contributes to normal muscle function” · Muscles

All 25 potassium capsules

creatine

2 authorised claims · 18 capsules · ingredient page
  • “Daily creatine consumption can enhance the effect of resistance training on muscle strength in adults over the age of 55.” · Muscles
  • “Creatine increases physical performance in successive bursts of short-term, high intensity exercise” · Muscles

Not authorised for muscles: the register refused 3 claims there.

All 18 creatine capsules

Beta Glucans

1 authorised claim · 3 capsules · ingredient page
  • “Beta-glucans contribute to the maintenance of normal blood cholesterol levels” · Heart

Glucomannan

1 authorised claim · 3 capsules · ingredient page
  • “Glucomannan contributes to the maintenance of normal blood cholesterol levels” · Heart

Thiamine

1 authorised claim · 3 capsules · ingredient page
  • “Thiamine contributes to the normal function of the heart” · Heart

Betaine

1 authorised claim · 2 capsules · ingredient page
  • “Betaine contributes to normal homocysteine metabolism” · Heart

Chitosan

1 authorised claim · 2 capsules · ingredient page
  • “Chitosan contributes to the maintenance of normal blood cholesterol levels” · Heart

Alpha-Linolenic Acid

1 authorised claim · 1 capsule · ingredient page
  • “ALA contributes to the maintenance of normal blood cholesterol levels” · Heart

Not authorised for heart: the register refused 1 claim there.

Oleic acid

1 authorised claim · 1 capsule · ingredient page
  • “Replacing saturated fats in the diet with unsaturated fats contributes to the maintenance of normal blood cholesterol levels. Oleic acid is an unsaturated fat.” · Heart

Protein

2 authorised claims · 1 capsule · ingredient page
  • “Protein contributes to a growth in muscle mass” · Muscles
  • “Protein contributes to the maintenance of muscle mass” · Muscles

Assessed by the register and not authorised

The register looked at claims for these relating to joints and heart and muscles and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.

Support & information

Independent organisations for support and reliable information; none endorses any product on this site.