Supplements, tested
Do Creatine Gummies Work?
Reviewed by a qualified clinician · analysed at UKAS-accredited UK labs (ISO 15189)
Last reviewed October 20265 min read
Every Helvy guide is written by our health editors, then checked by a qualified clinician before it goes live and re-checked as the science moves. We name clinical roles, not individuals, until each reviewer has agreed to be credited publicly. This is wellness guidance to help you understand your own data, not a diagnosis.
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Some do, many do not. Independent lab tests found that a large share of creatine gummies held little or no creatine. Some had broken down into creatinine, the waste product your kidney blood test measures. Plain creatine powder tested far more reliably. If you take creatine, tell whoever reads your kidney result.
Get a clean kidney baseline. Build your test →As of October 2026. “Creatine gummies” is one of the fastest growing supplement searches in the UK. A Reddit thread this month pointed out that gummies cost far more per gram than powder. The bigger problem is what is inside them. Here is what the lab tests found, and what it means if a blood test has flagged your kidneys.
1. What did the lab tests find?
Two rounds of testing tell the same story. Plenty of gummies fall far short of the label.
In 2024 a supplement maker bought 12 brands of creatine gummies and tested them in its own lab. Five of the 12 had little to no creatine. Every failing product also contained creatinine, a breakdown product of creatine.
In 2025 a second group sent six gummies and five powders to an independent accredited lab. Four of the six gummies failed. Two had no creatine they could detect. The other two gave under 1% of a 5g dose. To get 5g from one of them you would need about 2,000 gummies.
The powders all passed, at 98 to 101% purity. Even the two gummies that passed carried significant creatinine. Creatine powder, by contrast, is one of the most tested supplements there is. Our guide to how much creatine to take per day covers the dose that research uses.
2. Why do gummies lose their creatine?
Creatine does not like water. Dry powder keeps well. Once creatine sits in water, it slowly turns into creatinine, and it does so faster when warm.
A 2003 stability study dissolved creatine in water and stored it. After 45 days, 90% had broken down at room temperature and 80% in the fridge.
A gummy is a gel made with water and heat. The tester behind the 2024 results said the creatine may have broken down during manufacture. Nobody has published a stability study of a gummy itself. The pattern in both rounds of testing fits the chemistry, though.
3. Can creatine gummies affect your kidney blood test?
Yes, in either case. Creatinine is the waste product your kidneys filter out, and your creatinine blood test measures how much is in your blood. Your eGFR, the estimate of how well your kidneys filter, is worked out from that number.
If your gummy does hold creatine, it fills your muscle stores, and more creatinine is made each day. Our guide on whether creatine raises creatinine explains why that pushes creatinine up and eGFR down without harming your kidneys.
“Creatinine clearance was not altered in response to the meal of cooked meat.”
Mayersohn and colleagues, British Journal of Clinical Pharmacology, 1983
If your gummy has broken down, you may be swallowing creatinine itself. Cooked meat shows what that does. Cooking turns the creatine in meat into creatinine, which you absorb. In that 1983 study, a meat meal raised blood creatinine by an average of 52% within a few hours. Yet the kidneys filtered just as well as before.
Nobody has measured this for gummies. So treat it as likely, not proven. The practical point is that a raised result while you take creatine may say more about your supplement than your kidneys. It does not prove that, though, and the red flags in our high creatinine guide still apply.
4. How do you get a clean kidney reading?
Control the things that move creatinine for reasons that have nothing to do with your kidneys.
- Test before you start creatine, so you have a true baseline.
- If you already take it, some clinicians suggest a two to three week pause first.
- Skip cooked meat for 12 hours before the test.
- Drink normally and avoid a hard workout the day before.
- Tell whoever reads your result that you take creatine.
The 12-hour rule has good backing. A 2014 study in Diabetes Care found the effect of a meat meal on creatinine was gone after 12 hours of fasting. Our guide on what happens when you stop creatine covers how fast levels settle after a pause.
Helvy does not sell creatine. We do measure what it touches. Helvy's Thyroid & Vital Organs panel (£159) reports creatinine, urea and eGFR with liver and thyroid markers, from one home finger-prick sample. Our urea and electrolytes guide explains how those kidney markers fit together.
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Helvy's home blood tests report creatinine, urea and eGFR. Results in around five working days from UKAS-accredited UK labs.
Frequently asked questions
Do creatine gummies work?
Some do. In two rounds of lab testing, five of 12 and then four of six gummies held little or no creatine. All five powders in the 2025 test passed.
Why do creatine gummies contain creatinine?
Creatine slowly turns into creatinine when it sits in water, faster when warm. Gummies are made with water and heat, so some creatine can break down before you eat it.
Can creatine gummies raise my creatinine blood test?
Likely, yes. Real creatine raises creatinine over weeks. Swallowed creatinine is absorbed, as it is from cooked meat. Neither change means kidney damage on its own.
Should I stop creatine before a kidney blood test?
Some clinicians suggest a two to three week pause. At the least, skip cooked meat for 12 hours and tell whoever reads the result that you take creatine.