Generally, there's no hypothyroidism diet. Although claims about hypothyroidism diets abound, there's no evidence that eating or avoiding certain foods will improve thyroid function in people with hypothyroidism. If you have hypothyroidism, take thyroid hormone replacement as directed by your doctor — generally with an empty stomach. It's also important to note that too much dietary fiber can impair the absorption of synthetic thyroid hormone. Certain foods, supplements and medications can have the same effect. WalnutsSoybean flour,Cottonseed mealIron supplements or multivitamins containing iron,Calcium supplements,Antacids that contain aluminum or magnesium,Some ulcer medications, such as sucralfate....Some cholesterol-lowering drugs, such as those containing cholestyramine and colestipol To avoid potential interactions, eat these foods or use these products several hours before or after you take your thyroid medication. you can consume peanuts with medications if you find any adverse effects take them after few hours regards