TO POP, OR NOT TO POP

The MH verdict on the pills you take to bolster your defences

VITAMIN C

It protects against cell damage and boosts your immunity. Fight colds with 500mg four times a day. Stock your cupboard with Healthspan Elite Vitamin C (£11 healthspan.co.uk).

ECHINACEA

Its benefits vary, depending on the plant parts used and dosage. The flowers, leaves and stems may shorten a cold, but you’d need huge quantities – which will cost you.

PROBIOTICS

Some varieties elevate levels of antibody immunoglobin A. Take well-established kinds such as lactobacillus for digestive health (£14 bulkpowders.co.uk).

ELDERBERRY

It may be effective against colds, and a German study* suggests it can inhibit influenza A and B. Try a daily dose of Solgar extract (£12.50 simplysolgar.co.uk).