Body odor is caused when sweat is broken down by bacteria living on your skin. Your genetic makeup, being overweight, and stress can influence how you smell. Foods like garlic, cabbage, and meat, alcohol, and certain medications can cause body odor. Medical conditions such as hyperhidrosis and fish odor syndrome may also be responsible.
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https://www.viralpause.com/2018/05/9-causes-of-body-odor-and-remedies.html