Hi, Welcome to icliniq.com. Protein supplements do not cause black stools. Black stools, also known as melena, occur if there is bleeding in the upper gastrointestinal tract. There are chances of black stools if you take medications like Pepto-Bismol or Iron supplements. So, if you are not on Pepto-Bismol or Iron supplements and if there are persistent black stools which is sticky, bulky and offensive, then it requires immediate attention.
Hi, Welcome to icliniq.com. Deamidated gliadin IgG antibody level of more than 30 is diagnostic of celiac disease. Since the number mentioned by you is 152, it indicates that the person is having celiac disease..
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