Short answer: No. Caffeine has not been on the World Anti-Doping Agency (WADA) Prohibited List since 1 January 2004. It's on WADA's Monitoring Program instead, which tracks use in competition but carries no penalty. The bigger risk for athletes is a supplement contaminated with a substance that is banned. That's why many athletes choose batch-tested products: every batch of Zuum Energy Gum and Zuum Energy Powder is HASTA tested.
Caffeine is one of the most widely used and best-researched performance aids in sport. But if you play in a drug-tested competition, from the AFL and NRL to state-level athletics, it's worth knowing exactly where caffeine stands and how to keep your supplements clean.
A short history of caffeine and anti-doping
| Period | Caffeine's status |
|---|---|
| Before 2004 | Prohibited above a urine threshold of 12 micrograms per ml |
| 1 January 2004 | Removed from the WADA Prohibited List and moved to the Monitoring Program |
| 2026 | Still on the Monitoring Program (in competition only). Not prohibited |
According to a study of doping control samples, caffeine was considered prohibited until 2004, when WADA moved it to the Monitoring Program. Under the old rule, athletes were penalised if their urine caffeine was above 12 micrograms per ml.
Since then, WADA has tracked how much caffeine shows up in samples, to watch for patterns of misuse. The same study looked at 7,488 urine samples from Olympic sports in Spain. It found caffeine was detectable in about 70% of samples in 2004-2008 and about 76% in 2015, but concentrations suggested most athletes used it in moderate amounts.
What is WADA's Monitoring Program?
The Monitoring Program is a list of substances that are not prohibited, but that WADA wants to keep an eye on. Caffeine sits on it alongside substances like nicotine. Labs report how often these substances show up in samples, and WADA uses that data to decide whether anything needs to change.
For athletes, that means:
- You can use caffeine in training and competition under WADA rules.
- There's no caffeine limit under the WADA Code.
- Some sports or competitions may have their own rules, particularly outside the WADA system. For example, US college sport (NCAA) still has its own caffeine limit. Always check your sport's rules.
Caffeine is a "Group A" supplement in Australia
The Australian Institute of Sport (AIS) sorts supplements by how strong the evidence is. Caffeine is in Group A, the top group: supplements with strong scientific evidence for use in specific situations in sport.
The International Society of Sports Nutrition's position stand on caffeine reached a similar view. It found caffeine consistently improves performance across many types of exercise at doses of 3-6mg per kg of body weight. Read more in caffeine gum and exercise performance: what 32 studies show.
The real risk: contaminated supplements
Under anti-doping rules, athletes are strictly liable for anything found in their sample. It doesn't matter if a banned substance got there by accident through a contaminated supplement. You can still be sanctioned.
That's the main reason Sport Integrity Australia and the AIS advise athletes who use supplements to choose batch-tested products. Batch testing reduces the risk of contamination, although no program can remove the risk completely.
What is HASTA?
HASTA (Human and Supplement Testing Australia) is an Australian supplement testing program run by Racing Analytical Services Limited, a sports drug testing laboratory in Melbourne. HASTA tests supplements for substances on the WADA Prohibited List.
Here's how HASTA batch testing works:
- A sample from each production batch is tested for WADA prohibited substances.
- The batch is only released for sale once it passes.
- Each batch gets a certificate, so athletes and clubs can check the specific batch they're using.
Many Australian sporting bodies point athletes towards batch-tested products like HASTA or Informed Sport certified supplements to lower their risk.
Zuum and HASTA
Every batch of Zuum is HASTA tested before it's released. That's one reason Zuum Energy Gum is used by 14 AFL clubs and 9 NRL clubs, including the Sydney Swans, Hawthorn Hawks, Melbourne Storm and Canterbury-Bankstown Bulldogs.
| Zuum product | Caffeine | Also contains |
|---|---|---|
| Everyday Energy Gum | 30mg per piece | Guarana, B vitamins |
| Extra Strength Energy Gum | 60mg per piece | 60mg taurine, guarana, B vitamins |
| Everyday Energy Powder | 60mg per sachet | 250mg sodium, 200mg potassium, 60mg magnesium, B vitamins |
| Performance Energy Powder | 120mg per sachet | 500mg sodium, 250mg potassium, 80mg magnesium, 70mg calcium, 3,250mg taurine and glycine, B5 and B12 |
Caffeine, guarana, taurine, electrolytes and B vitamins are all permitted under the WADA Code.
A checklist for athletes using caffeine
- Check your sport's rules. Caffeine is permitted under WADA, but confirm with your club or governing body.
- Choose batch-tested products, and check the batch certificate if your club asks for it.
- Use the Sport Integrity app to check medicines and look up batch-tested supplements.
- Keep doses sensible. Food Standards Australia New Zealand recommends adults have no more than 200mg in a single serve and 400mg a day from all sources.
- Test it at training first. Don't try a new product or dose on game day. See when to take caffeine before training.
Frequently asked questions
Is caffeine banned by WADA?
No. Caffeine was removed from the WADA Prohibited List on 1 January 2004. It's on the Monitoring Program, which tracks use but carries no penalty.
Was caffeine ever banned in sport?
Yes. Before 2004, athletes could be penalised if their urine caffeine concentration was above 12 micrograms per ml.
Is there a caffeine limit for athletes?
There's no caffeine limit under the WADA Code. Some competitions outside the WADA system, like US college sport, set their own limits, so check your sport's rules.
What does HASTA tested mean?
It means a sample from every production batch has been tested by Human and Supplement Testing Australia for substances on the WADA Prohibited List before the batch is released for sale.
Is Zuum HASTA tested?
Yes. Every batch of Zuum Energy Gum and Zuum Energy Powder is HASTA tested.
Can a supplement cause a positive drug test?
Yes, if it's contaminated with a prohibited substance. Athletes are strictly liable for what's in their sample, which is why batch-tested products are recommended.
The bottom line
Caffeine has been permitted in WADA sport since 2004, and the AIS rates it as one of the best-supported supplements in sport. The thing to watch is contamination, not caffeine itself. If you're in drug-tested sport, choose batch-tested products, check your sport's rules and keep your doses sensible. Zuum Energy Gum and Zuum Energy Powder are HASTA tested, batch by batch.
Read the study: Aguilar-Navarro M et al. (2019), Urine caffeine concentration in doping control samples from 2004 to 2015, Nutrients 11(2):286. Open access on PubMed.
Want to learn more about how Zuum works? Read the science behind Zuum, browse energy gum, or see our FAQs.
