My son is 6 month old. my son's weight is decreasing. what can we give him for healthy neutrition to get back his weight. he likes juice of chiku and orange. he likes steamed mung dal and udad dal. he usually sleep every 45 minutes after 1.5-2 hours of play. and every time he wake up we feed him by his mother milk and things above. at night he get enough feed and sleep.still not getting weight gain. what can we do?