When I got my bodyfat tested about a month ago, it was 16.9%, and my weight was 127.4. This month it was 16.6% and weight 125.6. So if these measurements are correct (3-site skinfold test by the same operator), I have lost lean body mass. I thought I was eating plenty of protein - about 4oz of meat or equivalent three meals a day and 2oz for 3 or 4 snacks. I am breastfeeding but dd is almost 2 years old so does not rely on me for her primary source of nutrition. I am very dedicated to exercising and lift heavy weights for someone my size (bicep curl with 20# dumbells, for example). I recently received my shipment of protein powder blends from the protein factory and plan to use more of these when I work out. Any suggestions? I'll add that I can lose weight relatively easy with a little effort, but I have trouble building muscle, although I do better now that I am eating meat. Thanks in advance!

Jen