If a vitamin supplement contains GELATIN does that make it haram...confused?

Okay so like if my nails are kinda weak and I take like those vitamin supplements (Nature's Bounty- hair nails & skin) cause i work out cause i wanna lose a couple of pounds for this wedding so my dress won't be so tight on me. lol soooo is it okay if the vitamins contain gelatin? Is that halal? I dun wanna have weak hair or bendy nails and the foods i eat aren't very nutrientional lol Thanks!! 10 pts for best answer! :-)