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Caffeine

3 min

Contamination of nutrition supplements

Many supplements are manufactured to very high standards, but a significant percentage that are available for purchase, are not.

2,454 views

Asker Jeukendrup

4 min

Risks of supplement use

Supplements may have benefits in certain situations but they also come with risks. What are the risks and how can we mitigate them?

4,868 views

Are my iron levels affecting my performance?

Caroline Tarnowski

5 min

Are my iron levels affecting my performance?

What is iron deficiency? How common is it? whom is at risk and how can you measure it?

2,650 views

Concerns about truth of labelling of supplements and food products

Asker Jeukendrup

4 min

Concerns about truth of labelling of supplements and food products

A nutrition supplement may not always contain what you think it contains. Concerns about nutrition labelling of supplements and the quali...

1,597 views

Do ketone esters spare glycogen and improve performance?

Asker Jeukendrup

4 min

Do ketone esters spare glycogen and improve performance?

Are ketone esters really such a magical supplement?

3,505 views

Effects of dietary supplements on adaptations to endurance training

Jeffrey Rothschild and David Bishop

3 min

Effects of dietary supplements on adaptations to endurance training

Supplements such as sodium bicarbonate, beta-alanine, beetroot juice, and caffeine might improve the adaptation to training

6,203 views

Bryan Saunders

4 min

Beta alanine supplementation

Beta-alanine has become a “must-have” supplement for many athletes, but does the science support the hype?

6,461 views

Can peppermint improve performance in the heat?

Russel Best

3 min

Can peppermint improve performance in the heat?

Menthol (peppermint) is known for its familiar perceived cooling effect and fresh sensation in the mouth and nose. But can it also improve p

4,633 views

Ronald Maughan

4 min

Dietary supplements and elite athletes

A consensus document by experts brought together by the IOC on dietary supplements and elite athletes

5,782 views

Asker Jeukendrup

2 min

Vitamin D and performance

A recent study investigated if there is a link between vitamin D status and exercise performance and if sunlight or supplementation can be b

6,921 views

Asker Jeukendrup

3 min

Vitamin D supplementation guide

This will help to make decisions on vitamin D. When do you recommend vitamin D? and how much?

6,817 views

Is caffeine responsiveness in your genes?

Craig Pickering

4 min

Is caffeine responsiveness in your genes?

Caffeine can improve performance but there seem to be large individual differences in the response. Is this all down to our genes?

4,624 views

Using gelatin to improve performance, prevent injury, and accelerate return to play

Keith Baar

4 min

Using gelatin to improve performance, prevent injury, and accelerate return to play

New research suggests that we may be able to use gelatin to prevent injury. Here is the how and what by one of the worlds leading experts.

24,763 views

Asker Jeukendrup

4 min

How to use tart cherry juice

Tart cherry juice has become increasingly popular as a recovery aid and the scientific evidence seems to be growing. I caught up with Profes

5,266 views

Bitter-sweet application of Montmorency cherries in recovery

Glyn Howatson

4 min

Bitter-sweet application of Montmorency cherries in recovery

In recent years there has been a growing interest in so-called ‘functional foods’. One of these is tart cherry juice.

4,701 views

Probiotics: can they help to prevent illness?

Michael Gleeson

4 min

Probiotics: can they help to prevent illness?

What are probiotics? What are their benefits? Can they help to prevent illness?

5,224 views

Asker Jeukendrup

4 min

Timing of caffeine intake in long races

There is no question that caffeine can improve endurance performance. But what if you take it late in exercise? Does it still work?

8,835 views

Asker Jeukendrup

4 min

Ketone bodies: Fuel or hype?

Have we found a new magic substrate (fuel) for the muscle or is it all hype?

7,533 views

Asker Jeukendrup

3 min

Do green pills help athletes?

Spirulina and chlorella are popular supplements but do they work for athletes?

2,988 views

Citrulline, arginine and high intensity exercise performance

Asker Jeukendrup

3 min

Citrulline, arginine and high intensity exercise performance

Nitric oxide (NO) is a very small but very important molecule in the human body. It plays a crucial role in many processes in the body.

7,402 views

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30 YEARS OF EXPERIENCE IN SPORTS NUTRITION AS A RESEARCHER, EDUCATOR, PRACTITIONER, CONSULTANT AND ATHLETE