Vitabiotics Wellman Original

£8.55 per month (monthly subscription), vitabiotics.com

A good all-rounder for supporting energy levels and immune function, Vitabiotics’ Wellman Original contains a range of B vitamins that are necessary for the normal energy release from food, plus iron and B12 (needed for healthy red blood cells that carry oxygen around your body). It also includes vitamin D, which is recommended in supplement form from October to April – and year round if you have limited sun exposure.