Soya

No, you don't have to be vegan or vegetarian to reap the anti-ageing benefits of soya. Made from the edamame bean, soya is thought to have a collagen-boosting, anti-ageing effect on the body, so, coupled with the high levels of protein and low fat that it contains, it's an ideal addition to your diet if you're looking to firm up fast. Take it in supplement form, drink as milk, or stir-fry some tofu with a few other ingredients on this list for a powerful anti-ageing meal.