Vitamin D
Authorised claims for muscle, bones, and the immune system.
Useful if
You want the authorised vitamin D sentences and will check the source threshold on a label.
Skip it if
You want this page to interpret a symptom or pick a dose.
A buying guide. Not a hands-on test, a score, or a reader story.
Vitamin D, as a label note
Why this note
The claims cover muscle function, bones, and immune function, only for a source of vitamin D.
In favour
- The wording is authorised.
- The source rule is a label check.
Against
- Need is individual. This page does not assess it.
- It is not medical advice.
The authorised claims cover normal muscle function, normal bones, and normal immune function, and only when the product is at least a source of vitamin D. Whether you need a supplement depends on diet, season, and your own status. This page does not read symptoms and does not pick a dose.
How to read this note
Start with the job of the product. Then read the trade-offs. The shop buttons come last, and they are advertising. Nothing above them is a test result.
What to look for
- Vitamin D per serving, against the source-of threshold on the label rules
- D3 or another form, named clearly
- A dose aimed at adults, not a children’s product presented as a training supplement
- Storage instructions you will follow
What these supplement notes compare
The comparison is the wording on the label, not a promise about your training. Only authorised EU claims are quoted, and only with their conditions.
The authorised sentence
If a claim is not in the Union Register, it is not used here. No fat-loss lines, no recovery miracles.
The conditions
A daily amount, a source-of threshold, or a drink composition. The sentence applies only when the product meets them.
The person
Several claims are for adults. This site does not read symptoms and does not set a dose.
Authorised EU wording
“Vitamin D contributes to the maintenance of normal muscle function.”
“Vitamin D contributes to the maintenance of normal bones.”
“Vitamin D contributes to the normal function of the immune system.”
Wording follows Regulation (EU) No 432/2012 and the Union Register of nutrition and health claims.
Supplement questions
Is this medical advice?
No. Food supplements are not a substitute for a varied diet and a healthy lifestyle, and they are not a substitute for medical advice. Pain and illness belong with a clinician who can assess you.
Why do you not name a dose?
A dose is a decision for you and, where it matters, for a clinician. The page only repeats the condition the EU attaches to the claim, such as 3 g of creatine a day for that one sentence.
Where to look
Placeholder links. Check the specific label before you treat a claim as applicable.
Shops for this page
A rough band, not a live price. The shop sets the price.
| Shop | Best for | Trade-off | Indicative price | Check price |
|---|---|---|---|---|
| Amazon.com | The widest US catalogue when you already know the spec you need. | Many similar listings. You still have to read the details. | $8–25 | Check price |
Product photo
Reserved for an image from the partner product feed. No photo is shown yet.
Placeholder. Draft guide. Merchant links are ordinary catalogue searches until affiliate programmes are approved. This site has no wear tests, scores, or reader stories.
Merchant links
Suggested: Amazon.com
Country header: US Matched to the country header.
Placeholder destination. The programme is not approved, so this is a catalogue search, not a tracked affiliate URL.