I used to bruise a lot more... funnily enough, my toes don't really look bruised.
Some years ago, I started taking more Vit C, more bioflavinoids, and I eat the inner white part of citrus peels, which has MEGA good stuff in it. My easy bruising has pretty much gone away. I have way fewer "mystery" bruises, which is great, especially since it seems like every "old" person I've ever known (I used to work in a nursing home) is always covered in bruises, with really thin, fragile skin.
Anyway, the bioflavinoids are supposed to strengthen capillary walls, and weak walls make for easy bruises.
There is actually a good amount of Vit C, and other factors, in organ meats. I'm eating a lot more of those now, and my skin is getting absolutely wonderful.