This week's question comes from Richard who asks what the ORAC content is of our pomegranate, blueberries and acai smoothie. I'm afraid I'm going to have to go a bit geeky on you for this one.
Firstly what on earth is an ORAC? ORAC stands for Oxygen Radical Absorbance Capacity and is the method of measuring anti-oxidants in foods. ORAC results are often presented as something known as Trolox equivalents (TE) and the units are in micromole per gram (umol TE/g).
And what is an anti-oxidant exactly? Anti-oxidants are natural chemicals found in food, especially fruit and veg. They help to neutralise free radicals which can cause damage to the body's cells. A free radical is an unpaired electron (so it has a negative charge). An anti-oxidant can neutralise the negative charge and so stops damage.
There are various families of anti-oxidants found in fruit. These include flavanoids, polyphenols, anthocyanins, and vitamins A, C and E. Pomegranates, blueberries and acai all contain good levels of anti-oxidants and this smoothie contain over 3000 umol per 250ml which is pretty good for a little bottle. And if that wasn't good enough this smoothie also gives you 2 portions of fruit.
As ever let me know if you have any questions.
Bye for now
Dr Shilps






























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