The present invention relates to raw materials for pharmaceuticals and the like, wherein the raw materials can be effective in preventing and remedying various lifestyle-related diseases such as obesity and hyperlipidemia, safe, and applicable in wide areas； and the present invention also relates to a preventive/remedy for obesity, an agent for suppressing fat accumulation in internal organs, an agent for suppressing blood glucose level increase, an agent for suppressing blood insulin level increase, an agent for preventing and remedying diabetes, an agent for improving lipid metabolism, and an agent for promoting fatty acid oxidation, wherein waxy corn starch is an active ingredient.
