The NHS provides a soup and shake diet that facilitates the reversal of type 2 diabetes through a strict liquid diet of only 900 calories daily. The program involves consuming shakes, soups, and meal replacement bars for several months before gradually transitioning back to solid foods. Studies have shown that participants adhering to this diet lose significant weight and experience a regression in their diabetes. The program is fully funded by the NHS, making it free for participants. This diet is considered a promising approach in combating obesity and diabetes.