Im 22female. 5'8, 108lbs. no medical problems & nursing mom. i have trouble gaining weight. do i need supplements or vitamins? i want to gain lbs.

Maybe: Your bmi (body mass index) is the the underweight category. If you are healthy i would suggest you get a nutritional consult to evaluate the caloric and nutritional content of your average daily diet. In the meantime you certainly can take a nutritional supplement like ensure to add healthy calories and nutrients.

Waiting on Weight: Choose a good protein supplement. Whey, casein and soy are good sources. Whey is more rapidly absorbed than casein. Soy is plant based and has isoflavones which mimic some female hormones. Choose a concentrate not an isolate to avoid degraded protein in the manufacturing process. High protein intake with essential fats from pistachios, almonds and walnuts will bulk you up while nursing.