If you notice that you're gaining or losing weight without any apparent reason, it's a good idea to see a specialist at The Gut Clinic UK who deals with stomach and digestive issues. They can help make sure there are no serious problems causing these changes. One way to address these problems is by improving how your body digests food and gets the nutrients it needs. This can involve simple steps like drinking more fluids, choosing natural and unprocessed foods, eating foods that are high in fiber, and including fermented foods in your diet. It's important to talk to a specialist if you've experienced a sudden and significant increase or decrease in your weight, so they can make sure your digestive health is in good shape.