But it is a much better source of vitamin A than other yoghurts - one pot provides one fifth of the RDA. Diet fruit yoghurt is made with skimmed milk and sweeteners to achieve a lower calorie content.

Curly kale is also rich in lutein and zeaxanthin. Eating 75g of watercress provides 16 pc of the recommended daily allowance (RDA) for calcium and 12 pc of the RDA for iron, helping to prevent ...