Best supplements for MMA

MMA works from the same short list of supplements as boxing. What it has that boxing does not is a promotion that tells its fighters exactly which products it will protect them for.

The UFC's list is shorter than the shelf

Since the end of 2023 the UFC's anti-doping program has run without USADA. Results management sits with Combat Sports Anti-Doping, and samples are collected by Drug Free Sport International.

The program publishes its rule for supplements in plain words. The approved products are those certified by one of these programs:

• NSF Certified for Sport
• Informed Sport
• Informed Choice
• BSCG Certified Drug Free
• HASTA
• the Cologne List
• TruShield Certified

A fighter using certified products is protected if a problem results from them. A fighter using anything else is not. That turns certification from good advice into the condition the program itself sets. What each of the main programs actually tests is covered in the certification article.

The 5 with evidence, in an MMA camp

What the morning weigh-in changes

UFC fighters weigh in on the morning before the fight, which leaves around 30 hours to recover. That window decides timing more than the product does. Creatine's water is on the scale. Bicarbonate and caffeine belong to fight day, after the weigh-in, where the sodium no longer matters for the number but the stomach still does. How the cut itself runs.

What my shop sold

From 2010 to 2017 the pattern did not change. L-carnitine and fat burners were bought once. Protein, amino acids and joint supplements were bought again and again. The research agrees with the first group and not with the second, and the full breakdown is in the boxing version of this page.

The categories that end MMA careers

Across 18 years of anti-doping cases in one analysis, a supplement was proven to be the source 27 times. Pre-workouts accounted for 20 of those cases and fat burners for 4. Anything sold to drop water deserves the same suspicion, because diuretics are prohibited at all times.

Cannabis is a different case. The UFC program no longer treats it as prohibited, and it had already removed the other plant cannabinoids found in CBD products. A CBD bottle is still only as clean as its batch, and the athletic commission for a particular event can apply its own rules.

What goes in a fighter's bag

For most fighters, the list is short:

• Creatine monohydrate in pre-camp and early camp, stopped 4 to 6 weeks before the morning weigh-in.
• Caffeine for late cards, tried in a sparring session at the hour the fight will start.
• Protein powder with one of the 7 certifications, for the days when food cannot be arranged.
• Sodium bicarbonate or beta-alanine only after a trial in training.
• Vitamin D in an indoor or winter camp on restricted eating rather than by default, and iron only if a test shows a deficiency.

Anything without one of the 7 certifications stays out of the bag.

Check what you already own

The free Doping Risk Check on the tools page asks about a product and gives a straight answer on how much contamination risk it carries. A full review of everything a fighter takes, contract clauses included, is one of the services.

Common questions

What supplements does the UFC allow?

The UFC anti-doping program approves only supplements certified by one of 7 programs: NSF Certified for Sport, Informed Sport, Informed Choice, BSCG Certified Drug Free, HASTA, the Cologne List and TruShield Certified. It says fighters who use other supplements are not protected if a problem arises.

Is creatine good for MMA fighters?

Yes, for strength and repeated high-intensity work across a camp. It also adds weight: across 61 controlled trials, body mass rose by 0.89 kg on average, so it is usually stopped 4 to 6 weeks before the morning weigh-in.

Is cannabis banned in the UFC?

The UFC anti-doping program no longer treats cannabis as prohibited, and it removed the other plant cannabinoids earlier. The athletic commission regulating a particular event can still apply its own rules.

Can a supplement make an MMA fighter fail a drug test?

Yes. The athlete is responsible for what is in the sample, whatever the label said. Pre-workouts and fat burners are the highest-risk categories, and in the UFC only products with one of the 7 approved certifications come with the program's protection.