Does onion skin tea for bones actually work, or is it just an old wives' tale?

I tried the onion peel tea for a while because my old man wouldn't stop insisting, and honestly I didn't notice anything special in my bones or energy. Maybe it has some antioxidants, but if you really need to strengthen your bones, you're better off investing in actual calcium, vitamin D, and exercise - that actually works, not grandma's remedy.

There's one thing nobody mentioned and it's pretty important: if you're going to make that tea with onion skins, you need to make sure they come from onions that haven't been treated with pesticides or fungicides. A lot of people peel onions, toss the skins without thinking, and then want to make a "remedy" with the outer part, which is exactly where those chemicals accumulate if the onion was conventionally grown. That's the real grandmother's invention without any modern context.

As for bones themselves, the reality is you need calcium, vitamin D, magnesium, and some movement. The quercetin that others mention is a decent antioxidant, but your body absorbs nutrients way better from a glass of milk, yogurt, or canned sardines than from a tea made from skins. If you have real concerns about bone density, the tea isn't going to do even 1% of the work that a weight-bearing exercise routine or a balanced diet would do. The tea can be a nice complement if you feel like it, but selling it as a solution for your bones is pure wishful thinking.

What actually works with onion skins is they make a gorgeous color for dyeing fabrics if you're into that kind of creative stuff. But for bone health, better to put that effort into something more direct.