Yogurt is one of the healthiest fermented foods, but pay attention when you’re buying your favorite yogurt, it can contain too much sugar. “Look for brands with simple ingredients and full fats,” Kapur says. “Find brands, like Siggis, that are not sugared. And avoid ‘Fat free’, which usually has more sugar.” You should avoid those yogurts with fruit toppings. Instead of buying those yogurts, you can easily add to your yogurt fresh fruit and spices like orange and ginger.