Skinny mofos

Have a q for anybody listening my plants are quite skinny would this affect my yield and what's the best way beef them up a bit???

pics please

Yes whenever possible post pics, they are usually more helpful than a description. Well if you mean skinny like the main stock and branches are skinny then yes that can absolutely effect your yield, bigger stock & branches = bigger buds, I believe the only way to beef those up is bigger pots, better/more nutes & additives, however if your referring to it not being bushy enough then you need to top or fim, there are many treads regarding topping and fiming so if your not sure how to do it just do a search, hope that helps, good luck.