I have GNC Whey Iso burst protein I take about 2 scoops that equals to 45 grams, so for you I'd honestly think you should take 25 grams, but if you use Cell tech which is available and GNC if you are using free weights the Cell Tech creatine formula will help you synthesize the protein better plus you can mix it in juices for a more enjoyable taste, but you can get chocolate which is delicious, but I'd only use protein if i'm doing strength training, or high impact aerobics because it works out the leg muscles more.