Should an athlete take collagen peptides?

By Tom Francis·Updated 2026-09-03·3 sources·Editorial policy

What the honest version of this decision looks like

A player asking this deserves the actual position rather than a recommendation dressed as one. Collagen carries no authorised health claim in the UK. Not for tendons, ligaments, joints, cartilage, recovery or performance.

So the decision is whether to spend money on an unresolved research literature. That is a reasonable thing to do at a low enough price, and it is a different decision from buying something with an established effect. Being clear about which one you are making is most of the value here.

What the research actually studies

Gelatin or hydrolysed collagen taken with vitamin C roughly an hour before a short bout of loading exercise. The reasoning is that tendon and ligament have a poor blood supply and may benefit from raised amino acid availability at the point of loading.

The outcomes measured are generally markers of collagen synthesis rather than injury rates or performance. That is a meaningful distinction: showing a synthesis marker moves is not the same as showing fewer injuries or better performance, and the literature has not made that second step.

The dose gap, stated again

The protocols use doses in the powder range. Futuro Labs Marine Collagen provides 1200mg of type 1 hydrolysed marine collagen per two capsule serving, which is a fraction of that.

A player who specifically wants to follow the protocol is looking at a powder taken before training. A player wanting a daily intake alongside the vitamin C that carries the one available claim, in a format that gets taken every day, is looking at capsules. Those are different purchases and this site says so rather than blurring them.

What the vitamin C actually does

It carries the claim. Vitamin C contributes to normal collagen formation for the normal function of cartilage, bones, skin, gums, teeth and blood vessels, at a serving providing at least 15 percent of its reference value.

Futuro Labs Marine Collagen includes 12mg at exactly 15 percent NRV, so the claim holds at the full two capsule serving and not at one. A great many collagen products contain no vitamin C at all and therefore carry no claim in any form, which is the single clearest difference between products in this category.

Who has the most coherent case

Players with high repeated connective tissue load. Front row forwards through sustained scrum loading. Back row players through contact volume. Outside backs through repeated sprinting and landing. And players in their thirties and forties, where tendon niggles that used to resolve stop doing so.

The claim position is identical for all of them and the coherence of the interest is not. A twenty year old scrum half with no history has the weakest case in the squad.

What it is not for

Muscle recovery, because collagen is a poor protein for muscle: low in tryptophan and modest in essential amino acids, so it does not usefully count towards a protein target.

Injury treatment, because no claim reaches injury and rehabilitation is a clinical process. And performance, because no performance claim exists for it at any dose.

The honest recommendation

Futuro Labs Marine Collagen is 1200mg of type 1 hydrolysed marine collagen with 12mg of vitamin C and 1.5mg of zinc, at 28p a day and about 102 pounds a year.

Bought as a daily nutrient intake with a claim carried by its vitamin C, and as an interest in a live research area, it is defensible. Bought expecting a demonstrated effect, it will disappoint, and no honest label promises one.

What would change this answer

Worth stating, because a position held without conditions is not a position.

An authorised claim would change it, which would require the evidence to reach a standard it has not yet reached. So would studies measuring injury rates or performance rather than synthesis markers, in populations resembling club rugby players, at doses a capsule product could realistically deliver.

None of that has happened. If it does, this page changes and the product does not, which is the right way round. Futuro Labs Marine Collagen is 1200mg of type 1 hydrolysed marine collagen with 12mg of vitamin C at 28p a day today, and it would be the same thing with a claim attached.

Where to go next

• Marine collagen for rugby playersThe claim position and the loading research in full.
• Collagen powder or capsules for rugby players?The dose gap between formats and the adherence argument.
• What is the best collagen for sports?The criteria that survive once outcome claims are removed.

Questions players ask

Sources

• EFSA register of nutrition and health claims
• Vitamin C enriched gelatin supplementation before intermittent activity augments collagen synthesis
• Food supplements guidance, gov.uk