Probiotic drink

In the UK, it usually means a small fermented-milk drink containing live cultures, though some versions are dairy-free. Check the ingredients if you avoid milk.

Yes: it is usually served chilled and drunk straight from its small bottle, often with breakfast or as a snack. You do not need to dilute it.

It is best used cold. Heat can reduce the number of live cultures, so add it to a smoothie or cooled porridge rather than stirring it into steaming food.

Keep it in the fridge at 5°C or below, as advised by the Food Standards Agency, and use it within the time stated on the pack. Put it back in the fridge promptly after pouring.

Yes. Blend it with banana or berries while cold; its tangy taste works well with ripe, sweet fruit.

It contains 18 g of sugar per 100 g. Check the bottle size to work out how much you get in a whole serving.

A yoghurt drink has more: 2.7 g per 100 g, compared with 1.4 g in a probiotic drink.