Meridian barley malt extract

(370g, £1.99, holland andbarrett.com) Per tbsp: Calories, 47; saturated fat, 0g; sugar, 10.9g; salt, 0g Malt is a by-product of the brewing indus-try and was popular as a cheap dietary supplement for a generation of post-war children, who needed extra calories and nutrients.

a tablespoon of this will provide 5 to 10 per cent of your daily dose of vitamins B1 and B6 as well as iron, which are all important for maintaining energy levels.

However, there are two-and-a-half teaspoons of sugar from the malted grain — one-third of your daily limit.

TASTE: Similiar to treacle. 6/10