Don't turn to cleanses While you might see short-term weight loss results from a cleanse diet (typically an extremely low-protein, low-fat, low-calorie, all-liquid diet), once you start eating solid food again, you'll gain all the weight back. Plus, many health claims that cleanse companies make simply aren't true. For example, your gut does not need a rest from eating solid food. A healthy liver and kidneys do a great job of removing toxins from your body, so a cleanse is generally unnecessary. Instead, try making fruit and veggie smoothies with almond milk and silken tofu for a post-workout snack.