The health benefits of onions suggest the food may provide a variety of advantages for the hair “Onions have antibacterial, antifungal, and anti-inflammatory effects since they are high in antioxidants and flavonoids. These characteristics make it a viable treatment for dandruff-causing fungal infections, she continues. While there isn’t enough good information on how these qualities affect your scalp. While there is little evidence on the practical uses of onions for hair, a previous study found that participants with the hair-loss condition alopecia areata may benefit from using onion water to encourage hair regrowth. For two months, 38 women and men in the study applied onion juice or tap water twice daily to their scalps. By six weeks into the research, 20 of the 23 persons who consumed onion juice (or 87 percent) had experienced regrowth, compared to only two in the tap water group. However, because of the study’s limited sample size, more analysis is required to completely comprehend this possible impact. One reason why onion juice might benefit your hair is?” The onion water is quite rich in sulfur. According to prior study, you can also find large levels of sulfur in other foods like meat, eggs, cruciferous vegetables, and other alliaceous vegetables like garlic. After slicing onions, this vitamin makes you cry, according to The New York Times. However, it can also have other negative effects. For instance, sulfur, when applied topically to the scalp, is a popular over-the-counter remedy for inflammatory skin disorders.