Frequently Asked Questions

Q. Is coffee stimulating?
A. Caffeine, found naturally in coffee, is a mild central nervous system stimulant.

Q. I have heard that coffee leads to better physical performance, is this true?
A. Yes. Several published research papers over many years have shown that caffeine in coffee is an ergogenic aid – ergogenic means 'something that can increase muscular work capacity'.

Q. How long does the beneficial effect last?
A. Once consumed the effect of caffeine will be experienced after about 20 minutes and can last for several hours.

Q. How much coffee do I need to drink to experience this effect?
A. The amount is relatively small, with benefits on performance being seen after one large cup of coffee containing approximately 90 mg of caffeine.

Q. How does coffee help to boost my physical performance?
A. Whilst the beneficial effect is well documented in scientific literature, the exact mechanism of action is not yet fully understood.

Q. I had heard that coffee is a diuretic and that I should avoid coffee and other caffeine containing drinks before or during exercise – is this good advice?
A. It is not necessary to exclude caffeine containing beverages from your diet before or during exercise. There is no evidence to support caffeine restriction on the basis of impaired thermoregulation or changes to hydration status at levels less than 300 – 400 mg per day, equivalent to 3 to 4 regular size cups of coffee a day.

Q. So is it fair to say that the 3 to 4 cups of coffee I enjoy can be part of a healthy diet and lifestyle – whether I exercise or not?
A. Yes. Coffee drinking in moderation is safe and can be an enjoyable part of a healthy balanced diet.