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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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Testosterone and Thyroid and Heart and Bones

1483 capsules across 59 ingredients

Testosterone. Only a small number of ingredients hold register claims mentioning testosterone, and this page quotes them exactly. Claims in this category are heavily marketed well beyond what the register authorises; the split below shows the line.

Thyroid. Only iodine and selenium hold authorised register wording about the thyroid, quoted exactly on their pages. Thyroid conditions are diagnosed and managed by a GP, and the British Thyroid Foundation is the specialist charity.

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.

Bones. Ingredients here hold register claims relating to the maintenance of normal bones, quoted exactly on their pages. Weight-bearing exercise and dietary calcium are the foundations, and the Royal Osteoporosis Society is the specialist charity for anything further.

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 · 28 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones

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

All 28 magnesium capsules

Vitamin C

2 authorised claims · 17 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones
  • “Vitamin C contributes to normal collagen formation for the normal function of blood vessels” · Heart

All 17 vitamin c capsules

Vitamin D

3 authorised claims · 13 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal bones” · Bones
  • “Vitamin D is needed for normal growth and development of bone in children.” · Bones
  • “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.” · Bones

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

All 13 vitamin d capsules

Zinc

2 authorised claims · 12 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal bones” · Bones
  • “Zinc contributes to the maintenance of normal testosterone levels in the blood” · Testosterone

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

All 12 zinc capsules

Vitamin B6

1 authorised claim · 10 capsules · ingredient page
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Heart

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

All 10 vitamin b6 capsules

Calcium

3 authorised claims · 5 capsules · ingredient page
  • “Calcium helps to reduce the loss of bone mineral in post-menopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures” · Bones
  • “Calcium is needed for normal growth and development of bone in children.” · Bones
  • “Calcium is needed for the maintenance of normal bones” · Bones

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

All 5 calcium capsules

Potassium

1 authorised claim · 5 capsules · ingredient page
  • “Potassium contributes to the maintenance of normal blood pressure” · Heart

All 5 potassium capsules

Choline

1 authorised claim · 3 capsules · ingredient page
  • “Choline contributes to normal homocysteine metabolism” · Heart

Folate

1 authorised claim · 3 capsules · ingredient page
  • “Folate contributes to normal homocysteine metabolism” · Heart

Selenium

1 authorised claim · 3 capsules · ingredient page
  • “Selenium contributes to the normal thyroid function” · Thyroid

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

Manganese

1 authorised claim · 2 capsules · ingredient page
  • “Manganese contributes to the maintenance of normal bones” · Bones

Vitamin K

1 authorised claim · 2 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones

Glucomannan

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

Vitamin B12

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

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

Assessed by the register and not authorised

The register looked at claims for these relating to testosterone and thyroid and heart and bones 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

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