PARAM GAIN PLUS is complete WEIGHT GAIN SOLUTION for underweight people. Being underweight is defined as having a body mass index (BMI) below 18.5. PARAM GAIN PLUS IS complete nutrition formula for muscle management with weight gain. Due to certain condition of poor food habits.Sleep and stress, hormones and neurotransmitter imbalances or due to some pathological conditions some people do not gain appropriate body weight with proper muscle gain. PARAM GAIN PLUS helps in such condition by balancing the odds.