What is your feet like now? Can you give an example of your meals? Properly done,you should be able to get the protein you need from real food...not a manufactured bar. Choose good meat, cut out starchy carbs, have some good fat in the form of nuts,seeds,avocado, butter on your veg. The fat,combined with chicken,eggs,cheese,fish,beef,will leave you feeling satiated. 100gm of chicken breast...not a huge portion...has 30gm of protein. Add carbs in the form of leafy greens,broccoli,cauliflower, etc.