Independent, research-based guides on supplements, nutrition, fitness, and wellbeing. No sponsors. No affiliate links. No agenda.
No Affiliates
Research Only
Independently Checked
United Kingdom
I started PerformanceArchive because I was fed up. Fed up with buying supplements and not knowing what was actually in them. Fed up with flipping a label over and finding proprietary blends, filler ingredients, and doses so low they could not possibly do anything. Fed up with paying good money for products that existed to make someone else rich, not to make me healthier.
The fitness and wellbeing industry has a problem. It runs on marketing, not evidence. It sells you trends instead of truth. It hides behind fancy packaging, paid endorsements, and ingredient lists designed to confuse you. And for a long time, I fell for it like everyone else.
So I started reading. Research papers, regulatory reports, lab analyses, ingredient breakdowns. And the more I read, the angrier I got. Not because everything is dangerous, but because so much of it is just unnecessary, underdosed, or deliberately misleading. People deserve better than that.
PerformanceArchive is what came out of it. Every guide is built on evidence, written in plain language, and exists for one reason: to give you the information the industry hopes you never look for. No sponsorships. No affiliate links. No brand deals. Just honest, well-researched booklets that help you see through the noise and make decisions based on what actually works.
If something is a scam, I will say so. If something works, I will say that too. The only agenda here is the truth.
Every claim checked. Every ingredient dosed. Every product torn apart.
Every guide is independently researched, references NHS and EFSA positions where relevant, and is written without influence from any brand or sponsor.
Nine interactive tools. No sign-up. No data stored. Run the numbers on your protein, caffeine, supplement spend, pre-workout dose and more.
How much protein do you actually need? Based on your weight, activity and goal. Includes daily cost estimates and food equivalents.
Log what you have drunk today. See where you sit against the EFSA 400mg daily limit. Flags anything likely to affect tonight's sleep.
Work out what you are actually paying for the protein in any product. Brutally honest. Perfect for spotting inflated protein bars and drinks.
Tick everything you take. The tool flags absorption clashes, timing issues, and duplicates doing the same job. Most people have at least one.
A no-nonsense daily water target based on your weight, training load and climate. Cuts through the lazy "8 glasses a day" advice.
Roughly 20 to 30 percent of your daily fluid comes from food. The figure above is what you need to drink on top of a normal diet.
Daily calories (TDEE) and protein, carb and fat split for your goal. Uses the Mifflin-St Jeor equation, the standard used in clinical settings.
Enter what's on your pre-workout label. Tool flags underdosed ingredients against clinical research doses. Most pre-workouts fail at least one.
Work out what your supplement stack actually costs you per month. Ranked by evidence strength, so you know which ones are worth the spend.
Stops you getting ripped off. Enter a supplement's price, size and your daily dose, see the true cost per day and how long the tub will actually last.
These tools give general guidance, not medical advice. If you have a health condition or take medication, speak to a GP or registered dietitian before changing your intake of anything.
The doses, thresholds and formulas used in these tools come from peer-reviewed research, regulatory bodies, and UK supermarket pricing verified in 2026. Every figure below is traceable to its source.
Spotted something that needs updating? The industry moves fast and reformulations happen. Email [email protected] and I will check the source.
Whether it's a question about a guide, a product you want reviewed, or just to say hello — the inbox is always open.
[email protected]