Use fennel in a juice with apples and carrots, or try this simple genius recipe from Giada De Laurentiis for roasted fennel with parmesan. Next, find out exactlywhat happens to your body when you do a juice cleanse. Our grandmothers and great-grandmothers knew the wisdom of using up chicken and meat bones to make a strong broth for occasional ills and as a basis for hearty soups. Bone broths are good for your immune system and your soul, says Dr. Axe. It’s his first line of treatment for leaky gut syndrome, improving joint health, and boosting the immune system. Dr Juan Rivera Keto found that the children in his study experienced anxiety and irritability during the first five days of eliminating sugar and caffeine, though it eventually subsided. One of the biggest concerns is the amount of added sugars in our diets, which are often hidden in foods. Although ice cream cake is an obvious source of sugar, other foods that may not even taste sweet -- such as salad dressings, tomato sauces and breads -- can be loaded with the white stuff.