1. Biotin
If you want to have long, healthy hair and nails, those biotin pills you noticed yesterday in a commercial won’t do the trick. Take into consideration that “some supplements don’t have much evidence that they work,” says Ginger Hultin, a Seattle-based registered dietitian, nutritionist. So, stop ordering and taking biotin pills!
“Take biotin, for example—unless there is an outright deficiency, it’s not proven to help. It’s generally a best practice to get the nutrients you need from food if you can.” Opt for foods that are naturally rich in biotin such as eggs, salmon, sunflower seeds, sweet potato, almonds, spinach, broccoli, and dairy like milk, cheese, and yogurt.