Dietary supplements are ideal for players who cannot meet their energy requirements through their diet and are practical aids during and immediately following training and games

Several supplementary aids have been proven to enhance performance in specific elements of rugby fitness. However, there are also plenty of misleading promises and you should ask the following questions before use:

• Is the substance banned by the International Olympic Committee?
• Are there any short or long term side effects?
• Is there scientific support?
• Who recommended the product to you?

A sound nutrition plan, dedication, and a well designed training regime are your first objectives but for players who need to meet high energy demands and/or wish to increase their muscle mass, supplements are a worthwhile option.

For large players, meeting a nutrition plan target of 2g protein/kg bodyweight and 10g carbohydrate /kg is only possible with meal replacement and protein shakes

Supplements that provide protein and carbohydrate nutrients are often very low in fat and are enriched with vitamins and minerals. Other substances, which have a zero energy rating have also proven to be beneficial to performance and recovery include:

• Creatine
• Caffeine (legal up to a certain limit)
• Glutamine
• Glucosamine and cod liver oil
• Vitamins and minerals

Creatine and caffeine are two supplements that are known to enhance performance in some individuals