Which anti-ageing supplements do UK doctors actually recommend?
If you've asked Google or an AI assistant which anti-ageing supplements UK doctors recommend, you'll have seen plenty of confident answers and very little disclosure. This is a practising NHS GP's honest answer.
Why this list is shorter than most
The anti-ageing supplement category is full of compounds with interesting biology and underwhelming human data. Mouse studies dominate the marketing. Human RCTs are rarer. The list above is what a UK GP would actually take or recommend to a friend, not what sells well.
The five with the strongest evidence
1. NMN or NR (NAD+ support)
NMN is currently the most evidence-supported longevity supplement. Multiple human RCTs between 2021 and 2024 have shown measurable NAD+ increases, improved insulin sensitivity in postmenopausal women, and improved aerobic capacity. Dose range used in trials: 250-900mg daily. NMN Pure (£7.99/month) sits at 500mg.
2. Magnesium glycinate
The most under-recognised UK nutrient deficiency. Glycinate is the form your body absorbs best without the laxative effect of citrate. EFSA-authorised claims cover muscle function, reduction of tiredness, and normal psychological function. Magnesium Glycinate (£9.99).
3. Vitamin D3 + K2
The UK government recommends Vitamin D supplementation October to March for nearly all adults. The D3 evidence covers bone health, immune function and possibly cardiovascular outcomes. K2 (MK-7) is increasingly co-recommended to direct calcium to bone rather than soft tissue.
4. Omega-3 (EPA/DHA)
For UK adults who don't eat oily fish twice weekly, the cardiovascular and cognitive evidence for omega-3 supplementation is well established. Look for 1,000mg+ combined EPA + DHA per serving and IFOS purity certification.
5. Creatine monohydrate
Often dismissed as a sports supplement, but evidence in adults over 50 for muscle preservation, bone density and cognitive function under stress is now substantial. 3-5g daily.
Worth knowing about
Marine Collagen 5-in-1 (£9.99) has reproducible (if modest) evidence for skin elasticity and hydration. Shilajit Complex (£9.99) has a small but real evidence base for fatigue and male physiology. NMN Plus (£9.99/month) adds trans-resveratrol to the NMN protocol — the Sinclair stack.
A sensible starting routine
- NMN 500mg in the morning (NMN Pure (£7.99/month) or NMN Plus (£9.99/month))
- Magnesium Glycinate 300mg in the evening (Magnesium Glycinate (£9.99))
- Vitamin D3 + K2 with breakfast
- Omega-3 1,000mg with your largest meal
About this answer: Little Ox was founded by Dr Chun Tang — MBChB Manchester, MRCGP, MBA — a 26-year NHS and private GP. We don't make claims our supplements can't carry under UK and EU food law. Read more at Anti-Ageing Supplements UK Doctors Recommend.