Exercise is responsible for about 15% of fat loss. Dietary changes make up for the other 85%.
While your diet makes up the bulk of your fat loss, it’s still important to exercise. The key to building muscle while losing fat is to increase the intensity and volume of your exercise. If you are on keto and are not exercising, you will stop gaining muscle and possibly even lose muscle mass.
The benefits of fasting are amazing – especially if you can do a 72-hour fast. Most people will need to build up to a fast this long by starting with a 48-hour fast. It’s a good idea to do a 48 or 72-hour fast periodically – maybe once every month or two.
The benefits of fasting on the immune system have to do with growing a new immune system.