>I don't have particularly strong nails How much sunlight exposure do you get? My fingernails were also very weak until I started supplementing vitamin D, whic

>I don't have particularly strong nails How much sunlight exposure do you get? My fingernails were also very weak until I started supplementing vitamin D, which made them grow noticeably thicker and stronger. I think a lot of people here spend most of their time indoors so they're at higher risk of vitamin D deficiency.