Why Do My Feet Smell Like Vinegar?

The science answer-

Propionic acid (propanoic acid) is also present in many foot sweat samples. This acid is a breakdown product of amino acids by Propionibacteria, which thrive in the ducts of adolescent and adult sebaceous glands. As propionic acid is chemically structured similarly to acetic acid producing similar physical characteristics including odors, this may account for the foot odors identified as being vinegar-like smell by certain persons.

Get looser shoes and only wear cotton socks

I don't know but mine smell like wine, and I don't drink.

I don't know mine smell like Cheetos and farts so you think you got to a problem stop and enjoy life ok!!!! But nut