TUDCA is popular with lifters as a liver support supplement, but there is very little human research showing it helps a healthy liver. A closely related bile acid, ursodiol (UDCA), is a prescription medicine for some gallstone and liver conditions, yet most TUDCA research is in cells and animals, not in healthy people who train. If you are worried about your liver, talk to your GP about a liver function blood test first, then decide whether a supplement makes sense for you.
TUDCA supplements compared
| Product | TUDCA per capsule | Label serve | Capsules | Days at label serve | Price | Approx. cost per day |
|---|---|---|---|---|---|---|
| Beast Labs TUDCA 250 mg | 250 mg | 1 capsule (250 mg) | 60 | 60 | $79.95 | $1.33 |
| Best Naturals TUDCA 250 mg | 250 mg | 2 capsules (500 mg) | 60 | 30 | $79.95 | $2.67 |
| Condemned Labz TUDCA 250 mg | 250 mg | 1 capsule (250 mg) | 30 | 30 | $69.95 | $2.33 |
Cost per day uses each label's own serve, so the Best Naturals figure covers twice as much TUDCA as the other two. Per capsule, Beast Labs and Best Naturals cost the same at the time of writing (60 capsules of 250 mg each), and Beast Labs has been our best-selling TUDCA over the last six months. All three are single-ingredient products, so you can see exactly what you are taking.
What is TUDCA?
TUDCA stands for tauroursodeoxycholic acid. It is the taurine-bound form of UDCA, a bile acid your body makes in small amounts. Bile acids are made in the liver and released into the gut, where their main job is helping you digest fats.
Ursodiol, the medicine form of UDCA, is prescribed to dissolve some cholesterol gallstones and for certain long-term liver conditions, under medical supervision, according to the US National Institutes of Health LiverTox database. That is a doctor-managed medicine for diagnosed conditions, which is very different from a healthy lifter taking an over-the-counter TUDCA capsule every day.
What the evidence says
- Lots of lab research, little human research. A 2019 review in Cells describes a large amount of promising cell and animal research on TUDCA, but notes clear limits on using it in people. Results in a petri dish or a mouse often do not carry over to humans.
- Few trials in healthy, active people. We could not find good-quality trials showing that TUDCA improves liver blood tests or liver health in healthy people who lift weights.
- No supplement replaces medical care. Abnormal liver blood tests have many possible causes, from alcohol and medicines to fatty liver and even hard training. Only a doctor can work out which one applies to you.
In short, the research is mixed to weak for healthy lifters. If you choose to try TUDCA, see it as an optional extra, not as cover for habits that strain your liver.
Why lifters worry about their liver
Many lifters first think about their liver after a blood test comes back with raised AST or ALT, two enzymes measured in a liver function test. Training itself can do this. In a 2008 study, 15 healthy men who were not used to weightlifting did one hour of lifting. Their AST and ALT rose sharply and stayed high for at least 7 days. The researchers said hard weight training should be considered as a possible cause of raised liver test results with no symptoms.
So if you train hard, tell your GP about your recent sessions before a blood test, or ask whether you should take a few easy days first. It could save you a lot of worry, and money spent on supplements you may not need.
Talk to your GP first if
- You have a known liver, gallbladder or bile duct condition.
- You take prescription medicines, including cholesterol medicines.
- You are pregnant or breastfeeding.
- You drink heavily or use anything else that can affect your liver. Your GP can arrange a liver function test with a referral to a pathology collection centre.
- A recent blood test showed abnormal results.
What actually supports liver health
Fatty liver disease affects about 1 in 3 Australian adults, according to healthdirect. The steps with the strongest backing are simple: keep a healthy body weight, stay active on most days, eat a healthy diet with less added sugar, and keep alcohol low. Regular training already ticks one of those boxes.
Be careful with medicines too. A paracetamol overdose can damage your liver, and it is easy to take too much by mistake because it is in many cold and flu products. Read every label, follow the dose, and ask a pharmacist if you are unsure. If you drink, our post on creatine and alcohol covers how drinking affects training, and our NMN and the liver post looks at another supplement lifters ask about.
Our verdict
For most healthy lifters, TUDCA is optional, and the human evidence for it as a supplement is limited. Get a liver function test through your GP if you have concerns, and focus on body weight, alcohol and careful medicine use first. If you still want to try TUDCA after talking to your GP, a single-ingredient product with a clear dose is the simplest choice. Beast Labs TUDCA 250 mg is our most popular option, while Best Naturals TUDCA suits people who want the label's 500 mg daily serve.
Browse our TUDCA range, or see our supplements guide for where to start with the basics.
Shop the products in this guide
Beast Labs TUDCA 250 mg, 60 capsules$79.95
Best Naturals TUDCA 250 mg, 60 capsules$79.95
Condemned Labz TUDCA 250 mg, 30 capsules$69.95
Browse all TUDCA products.
FAQs
What does TUDCA do?
TUDCA is a bile acid, the taurine-bound form of UDCA. Bile acids help you digest fats. A related bile acid, ursodiol, is a prescription medicine for some gallstone and liver conditions. TUDCA has been studied a lot in cells and animals, but there is little good human research on it as a supplement for healthy people, so its benefits for lifters are unproven.
Does TUDCA protect your liver?
There is no good evidence that an over-the-counter TUDCA supplement protects a healthy liver from alcohol, medicines or anything else. Most of the research is in cells, animals or people with diagnosed liver conditions using it under medical care. If you are concerned about your liver, the most useful step is to talk to your GP about a liver function blood test.
How much TUDCA do people take?
Follow your product's label and do not go above it. The products we stock contain 250 mg per capsule. The Beast Labs and Condemned Labz labels list one capsule as a serve, while the Best Naturals label directs two capsules (500 mg) a day on an empty stomach. If you have a medical condition, take medication or are pregnant, check with your GP before using TUDCA.
Can lifting weights affect liver blood tests?
Yes. In a 2008 study, healthy men who did one hour of weightlifting had large rises in AST and ALT, two enzymes measured in liver function tests, and the rises lasted at least 7 days. The researchers said hard training should be considered as a possible cause of raised results. Tell your GP about recent hard sessions before a blood test.
Is TUDCA safe to take every day?
The long-term safety of TUDCA supplements in healthy people has not been well studied, so it is hard to say. The products we stock carry warnings to check with a doctor if you are pregnant, breastfeeding, take medication or have a medical condition. Anyone with a liver, gallbladder or bile duct condition should only use it with advice from their GP.
Sources: LiverTox (NIH), ursodiol; Kusaczuk (2019), TUDCA review, Cells; Pettersson et al. (2008), weightlifting and liver function tests; healthdirect, liver function tests; healthdirect, fatty liver; healthdirect, paracetamol; product labels and brand nutrition panels, checked October 2026.
Order online with Australia-wide delivery, free on orders of $99.99 or more, with Afterpay available at checkout. You can also use click and collect at a store that offers it, or visit a Supps247 store in Melbourne, regional Victoria or Brisbane to compare products in person. Members can use our member price match on full-priced items.
Prices and stock were checked on 29 October 2026 and can change at any time. Always read the label and follow the directions for use. If you have a medical condition, are pregnant or take regular medication, check with your doctor first.
