In the UK, everyone is recommended to take a vitamin D supplement throughout autumn and winter to support health and wellbeing, particularly bone health.Additionally, the NHS states: “People at high risk of not getting enough vitamin D, all children aged 1 to 4, and all babies (unless they’re having more than 500ml of infant formula a day) should take a daily supplement throughout the year.”However, how effective are these supplements and do we really need to take them every day?In a recent ZOE podcast episode, Professor Tim Spector and Dr Federica Amati revealed the truth about Vitamin D.Tim is scientific co-founder of ZOE and professor of genetic epidemiology at King’s College London. Federica is head nutritionist at ZOE and author of the Sunday Times bestseller ‘Every Body Should Know This’.How effective are vitamin D supplement