Many women swear by using mayonnaise, olive oil, or other common food products to help keep their hair healthy. With so many proposed solutions and a lack of clinical research, it’s hard to say that these things really work. While it might work for some people, preventing hair loss is really about good health overall and taking preventative steps to ensure you scalp and hair follicles stay healthy. Even with all of that if you’re genetically predisposed to hair loss, you may still have to battle with balding. So this is more of a myth than a tested, tried and true solution.