Alex Chesterman, the CEO of property website Zoopla, has invested in VITL, a healthcare startup that's preparing to launch a service that uses artificial intelligence to personalise vitamin deliveries. It's a curious concept: You enter your health information into an app, noting any illnesses you have, and then it uses that data to suggest some vitamins you should be taking. VITL says it's working on including data from wearable devices as well as DNA information to make its service more personalised. VITL has raised a $1.5 million (£1.2 million) seed round from investors including Chesterman, David de Rothschild, LoveFilm cofounder Simon Franks, drum and bass duo Sigma, and Bloom & Wild founder Ben Stanway. Vitamins aren't a wonder drug that will keep you healthy if you take them.