What role does tTG IgA play in weight loss?

tTG IgA is an antibody used in the diagnosis of celiac disease. Elevated levels indicate active celiac disease, which can cause intestinal damage and malabsorption, sometimes leading to unintentional weight loss. However, tTG IgA itself does not play a direct role in weight loss; it is a diagnostic marker, not a weight-loss intervention. In confirmed celiac disease, a gluten-free diet typically restores gut health and normalizes weight – it may lead to weight gain in underweight individuals or weight loss in overweight individuals, but this is an indirect effect. The MyBody-X knowledge context does not provide specific studies linking tTG IgA to weight loss. Evidence for its diagnostic role is strong (human-strong), but for weight management in non-celiac individuals, there is no support. Caveat: tTG IgA testing should only be used when celiac disease is suspected; it is not a general weight-loss test.