One hour after consuming my promo bottle of Organic Yang mei Juice, I think I may have OD’d on the stuff. My vision seems super sharp, there’s a slight pressure behind my temples and I am feeling oddly energised. The keyboard is floating about a centimetre off the desk and there’s a slight buzzing noise inside my ears. All I need now is the bats to descend and it’s Fear and Loathing in Carnaby Street.

The accompanying literature doesn’t mention any of this. Yang mei Juice is made from the Yang-Mei fruit and has been a cure in Chinese medicine since 700 AD with the fruit grown for 5000 years. Apparently it was supposed to cure headaches, stomach complaints, heat stroke and urinary infections, although thankfully I don’t have any of those. Or perhaps I did and they are now all cured?

It also contains a huge range of micro-nutrients including anthocyanins which come from plants and are thought to combat cancer-causing free radicals, and also oligomeric proanthyocynadins, which sound pretty good eh? Anything unpronounceable has to be good for you.

In fact these antioxidants, Google tells me, are supposed to be 50 times stronger than vitamin E and 20 times stronger than Vitamin C. What’s more, it delivers in half a bottle one portion of your five a day. Presumably a whole bottle delivers two portions, so why does the press release not do the maths?

It tastes very nice for something that’s good for you, especially chilled. Remarkably sharp and dry and like a mix of strawberry and cranberry juices. Rather refreshing actually, and at £2.50 a better deal than a schooner of coffee from a well-known high street coffee shop. Even if you don’t suffer from the above-mentioned ailments, it is said to boost your immune system and fight bacterial infections.

I could quite easily get into one of these a day, perhaps drunk a little slower next time though. You can buy them in health food shops all over the UK, or go online to www.yumberryuk.co.uk. Now then, about all these lizards I can see crawling up my desk leg.