SUPPLEMENTS · NUTRITION · PERFORMANCE

WHAT ACTUALLY WORKS.

Honest supplement guides with no brand deals — just the handful of things with real evidence, the forms actually worth buying, and the many that are expensive hope.

Start with food. Use supplements only where they solve a real problem. This page shows you what's useful, what's situational, and what's mostly marketing.

Food First

SUPPLEMENTS ARE
THE LAST 5%.

Food, protein and a plan that survives a bad week — that's the ninety-five per cent doing the actual work. Everything else on this page fills gaps.

Open the Nutrition Guide →

Nothing on this page is medical or dietary advice. If you are pregnant or breastfeeding, managing a health condition, taking prescription medication, or have any history of disordered eating, please speak to your GP or a registered dietitian before changing how you eat or what you supplement.

THE INDUSTRY, IN NUMBERS

A HUGE BUSINESS BUILT ON A SMALL AMOUNT OF EVIDENCE.

Before you spend a penny, these are the figures worth knowing. They explain both why the shelves are so full — and why so little on them is worth buying.

£209bn
The global supplement industry in 2025 — an enormous business running largely on hope
~42%
Of UK adults take a supplement regularly — more women (47%) than men (37%)
A handful
Supplements with strong evidence on the AIS framework: caffeine, creatine, protein, beta-alanine, nitrate, bicarbonate
~47%
Of protein powders tested exceeded a heavy-metal threshold (Clean Label Project, 2025)
3–25%
Of supplements analysed carried unlisted steroids or stimulants — why third-party testing matters
No.1
Creatine — the single most-researched supplement in sport, and one of the cheapest
THE HONEST HIERARCHY

IF YOU ONLY REMEMBER ONE THING.

Here is the entire supplement question, ranked by how much it actually matters. Almost everyone is shopping three tiers down before they have sorted the first one.

FIRSTFree

Food, sleep and training. No supplement moves the needle a fraction of what these do. If any of the three is a mess, a tub will not save it — sort these before you spend a penny.

MAYBESituational

Caffeine, vitamin D, omega-3, magnesium. Genuinely useful in the right context — a UK winter, a hard session, poor sleep, low fish intake. Worth it for the right person, optional for many.

RARELYNarrow

EAAs, collagen, iron. Real but specific: fasted training, tendons and skin, a proven deficiency. Buy only if the case is actually yours — and test before iron.

SKIPWaste

Fat burners, BCAAs, most multivitamins, greens powders. Little or no evidence for a healthy, well-fed person. This is where most of the money and the guilt go.

WHY I WRITE THIS SECTION

THE CUPBOARD OF FOURTEEN TUBS.

At one point I counted them: fourteen. A fat burner bought in a low week, two pre-workouts, BCAAs I couldn't have defined if asked. What changed wasn't willpower — it was reading. A small, boring handful held up: creatine, protein, caffeine, vitamin D for where we live. The rest was, at best, harmless and expensive.

I stopped buying supplements on hope and started buying them on evidence. The cupboard emptied. The results didn't change.

That's the whole reason this section exists — not to sell you more tubs, but to get you down to the few that earn it. You deserve the version I did not have.

HOW I ACTUALLY TEST THIS STUFF

I SEPARATE PERSONAL USE FROM RESEARCH

USE IT products were bought at full price and used during real training. RESEARCHED products are clearly labelled and assessed through published evidence and independent testing rather than personal use.

I READ THE RESEARCH, NOT THE LABEL

The claim on the front of a tub is marketing. The useful information is in the evidence, and where that evidence is thin, mixed or missing, I say so plainly — even when it costs me an affiliate sale.

I LOOK FOR THE RIGHT KIND OF THIRD-PARTY TESTING

Different certifications check different risks. I look for banned-substance testing on sports supplements, purity and oxidation testing on fish oil, and contaminant testing where it is relevant.

I TELL YOU THE DOWNSIDE

Every product has a trade-off, and it goes on the page. A recommendation without a downside is an advert, and this section is not for sale.

QUICK ANSWERS

Which supplements actually work?

For training, creatine and caffeine have strong evidence. Protein powder is useful when food alone does not cover your daily protein target. Vitamins, minerals and omega-3 depend on the person, diet and a specific need.

Do I need a multivitamin?

Many people with a varied diet do not need a general multivitamin. Targeted supplementation usually makes more sense when there is a known dietary gap, increased need or professional recommendation.

Is protein powder safe?

Broadly yes, but product quality varies. Independent testing can help identify issues with contaminants, label accuracy and banned substances. Do not assume that organic, premium or plant-based automatically means cleaner.

Are expensive supplements better?

Not automatically. Paying more can be worthwhile for credible testing, transparent dosing and a form that is actually useful. Paying more for branding, proprietary blends or exaggerated claims rarely improves results.

Sort your food, your sleep and your training first. Then add the two or three things that genuinely earn their place, and walk past the rest. That is the honest version I wish someone had handed me fourteen tubs ago.

Sources & Research

Educational content, not medical advice. Products marked USE IT are ones I buy and use; RESEARCHED items are based on independent testing and published evidence, not personal use. If you are pregnant, breastfeeding, managing a health condition or taking medication, speak to an appropriate healthcare professional before adding a supplement.

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