Gluten-free diets are for people who have allergies to gluten, are gluten sensitive or have Celiacs Disease – not for weight loss! They do not give people more energy. Energy does come from eating a well-balanced diet, drinking plenty of water, eliminating non-nutritive sources of calories (such as vodka), exercising regularly and vigorously, sleeping adequately and well, and handling stress in a productive way.
It would be wonderful if that was better understood and accepted. If someone wants to try a gluten-free approach just for curiosity or to experience what other grains, rices, potatoes and yams taste like instead of wheat, great! There are many things that contain gluten that aren’t particularly healthy. But that doesn’t make things that are gluten free automatically healthy either.