For most celiacs one they are on a totally gluten free diet they will naturally regain their normal weight.
Weight is part of a simple equation. The model I share in Eat Well – Live Well with celiac disease describes it as a see saw in the park.
If you eat calories which balance out your physical activity your weight will remain the same.
Consume more calories than you burn up in daily activity including exercise and you will gain weight.
Consume fewer calories than you burn up in activity and you will loose weight.
If you are trying to gain weight you need to think carefully about what you eat and what you do. It is still important to take healthy exercise to ensure you do not develop other health related problems.
Even when trying to gain weight it is important to eat healthily and stick rigidly to a gluten free diet. Although fats and oils contain the most calories ounce for ounce make sure you eat a sensible amount of fat and as far as possible eat fats found in oily fish, vegetables and nuts. You will need to be consistent and look for results over time rather than quick gain, which is lost as soon as you stop the healthy...