A 70ml shot of beetroot juice which contains 300mg of nitrate will be absorbed into the body over two hours and changed into nitric oxide. This in turn opens up blood vessels and delivers more oxygen to the muscles, allowing you to exercise harder for longer.
Training for longer periods gives you more of a chance to burn calories, right?
‘This has really only been tested in the athlete population, so sports with a high level of intensity,’ Dr Condo explains.
‘If someone is doing a normal amount of exercise for general health at moderate intensity, at the moment, there is nothing to suggest that beetroot juice will help in any way.’
That said, even if you are an athlete of peak physical ability, it’s not as easy as just doing your best Popeye impersonation with a can of beetroots.