The total energy requirement in infancy refers to the sum of energy required by infants in the process of growth and development, which varies with age, weight, growth rate and other factors. Generally speaking, the energy requirement in infancy can be calculated according to the energy required per kilogram of body weight, which is100-10 kcal/kg for 0-3 months, and 90- 100 for 4-6 months and 7- 12 months.
1, age: As the baby grows older, its energy demand will change. In the neonatal period, babies grow faster and have higher energy demand; As the baby grows up, the energy demand gradually decreases.
2, weight: the baby's energy needs are directly proportional to its weight. Lighter babies need less energy, while heavier babies need more energy.
3. Growth speed: A baby with a faster growth speed has a relatively high energy demand. For example, premature infants and low birth weight infants need more energy to support their growth because of their slow growth and development.
4. Activity level: The activity level of a baby will also affect its energy demand. Babies who are active consume more energy, so their energy needs are correspondingly higher.
5. Disease factors: Infants with certain diseases, such as indigestion and malabsorption, may lead to increased energy demand.
In a word, the total energy demand in infancy is influenced by many factors and needs to be calculated reasonably according to the specific situation of infants. If in doubt, it is recommended to consult a professional doctor or dietitian to ensure that the baby gets proper nutrition supply and promotes healthy growth.
Extended data:
Babies' energy needs include five aspects:
1, which is required by basal metabolism, accounts for 50%-60% of total energy and decreases with age;
2. Special dynamic function of food: refers to the energy consumed when ingesting, digesting and absorbing food, accounting for 7%-8% of the total energy, and about 5% for older children;
3, growth and development needs: unique to children, the required amount is directly proportional to the growth rate. 1 year accounts for 25%-30% of the total energy, which decreases year by year and increases again in adolescence;
4. Activity requirements: The energy used by different children for muscle activity varies greatly, accounting for 65,438+05%-20% of the total energy, and the infant needs about 65,438+05-20kcal/kg;
5. Energy loss caused by excretion: generally not more than 10% of total energy.