If the weight gain is not intentional and unwanted and uncontrolled particularly if new, one should look at health issues first. Particularly of lifestyle issues are not supporting weight gain. I mentioned this because unexplained weight loss and weight gain are a large predictor and health problems so if this is a new issue and one that you cannot control you should contact your local physician to get more information. this is particularly true in the case of autoimmune diseases. Good luck 🍀. If this lifestyle based then we can help with more then just support 😊.