minerals

recently I decided to give up all liquid calories and just stick to water to save money I drink a lot of filtered water at home. and I was reading that when you do that you filter out all the minerals out of the water too and that's not good either so do you think it would be a good idea to add...

Why do I get pain Lately from weight training. I'm wondering if it's because I'm not getting enough vitamins and minerals in my diet. If so then what do you recommend I get as far as a multivitamin. Or should I get something to help with the pain itself