Final answer:
Infants' growth is monitored by comparing their weight with standard values to ensure they are growing normally. A healthy full-term newborn's average weight is about 3.4 kg (7.5 lb). Weight is expected to double in six months and triple by the first birthday.
Step-by-step explanation:
The question asks for the weight of Nahya, an infant, in a nutritional study conducted in a developing country. Although the specific weight of Nahya is not provided, it is essential to understand the patterns of growth and nutrition in infants. During doctor visits in infancy, a baby's weight and length are measured and compared to established norms to ensure proper growth.
A full-term newborn typically has an average birth weight of about 3.4 kg (7.5 lb) and a length of approximately 51 cm (20 in.). Initial weight loss in the first week of life is normal, but thereafter, a healthy infant will begin to gain weight rapidly.
Normal growth patterns suggest that a baby's weight generally doubles in six months and triples by their first birthday. Monitoring these growth patterns is crucial since deviations can indicate health issues or the risk of future obesity.