FOR STRESS AND MEMORY

BumbleZest Flourish + Flow Rosemary Thyme & Lavender Sparkling Water, 250ml, £1.89, hollandandbarrett.com Per 100ml: Calories, 7; saturated fat, 0g; sugar, 1.4g; salt, <0.01g CLAIM: ‘Infused with cinnamon, stressreducing lavender, memory-enhancing rosemary and mood-boosting thyme.’ EXPERT VERDICT: On the plus side, this is lower in sugar than some of the others reviewed here and lower in calories, too. You’ll get just under a teaspoonful of sugar, which comes from added maple syrup.

But there’s just 0.1 per cent each of thyme, cinnamon and lavender and a tiny 0.06 per cent rosemary. While some of these herbs are believed to have calming properties, there’s so little of them in here that I can’t see they’ll do much other than make the drink taste good. This is essentially a pricey alternative to tap water. TASTE: Pleasant herbal flavours, and not too fizzy. 6/10