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Drug Information Database - Supplements

Some athletes take supplements in the belief that it will help maintain their health and their performance. However, it is now generally accepted that any athlete, who is liable to be tested in or out of competition for prohibited substances, may be at risk of a positive drug test from the use of contaminated supplements due to contamination.

Reliable studies of supplements have shown that up to 25% of dietary supplements on sale to athletes may contain small amounts of prohibited substances, commonly including anabolic androgenic steroids and stimulants, with a few supplements containing large quantities of these substances. These quantities would cause and have been found to cause positive drug tests.

As a result, we cannot be sure that supplements, including vitamins and minerals, ergogenic aids, and herbal remedies, are free from prohibited substances and it is for this reason that we strongly advise against the use of supplements by any athlete eligible for drug testing.

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Why are Supplements unsafe for athletes?

The manufacture, distribution and promotion of dietary supplements are covered by a variety of regulations that relate mainly to their safety for the general human population.

There are Pharmaceutical Industry Standards in place to protect the consumer against the risk of ingesting substances that are potentially harmful to their health. These standards are set to ensure that levels of contamination in medicines or supplements do not exceed 0.1% by mass.

As the general human population are not subject to the anti-doping rules of sport and are not drug tested as athletes are, these Pharmaceutical Industry Standards are satisfactory for the majority.

In the case of some doping substances, however, much smaller levels of contamination may cause an athlete to test positive. This is because all WADA Accredited Laboratories are required to analyse your urine or blood sample to a standard that could detect a level of contamination of 0.00001%, or ten thousand times less than the pharmaceutical standard of 0.1%.

Where supplements are consumed in relatively large amounts, for example, protein powders where daily intakes by athletes may reach 100g, contamination could result in a positive drug test and an anti-doping rule violation.

For this reason, manufacturers that advertise their products as being 'IOC Permitted' or 'WADA approved' are misleading athletes as the IOC, WADA or UK Sport do not endorse the safety or legality of any supplements for athletes.

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Strict Liability means that the absence of a warning to the athlete or a guarantee of the safety of a product from a manufacturer does not reduce the seriousness of the doping violation.

Athletes take supplements at their own risk and personal responsibility. You are encouraged to seek professional guidance from a qualified medical practitioner, accredited sports dietitian and/or a registered nutritionist about your diet and supplement use.

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To read about the latest guidelines in sports nutrition according to the IOC Medical Commission Working Group on Sports Nutrition visit
www.olympics.org.

Here you will find guidance on nutrition for some of the following:

- Energy needs and weight control
- Energy needs for training and recovery
- Protein needs for bulking up
- Fluid, carbohydrate and salt needs
- Special needs for endurance sports
- Special needs for team sports
- Special needs for power and sprint sports
- Special needs for winter sports
- Special needs for weight conscious sports

For a copy of UK Sport's 'Advice to Athletes on the use of Supplements' fact sheet log on to our website www.100percentme.co.uk and find out about:

- The difference between a licensed medication and a supplement
- Accepting sponsorship from supplement manufacturers
- False advertising claims
- Having supplements tested by a WADA Accredited Laboratory