The number of calories your body burns in a day, or Total Daily Energy Expenditure (TDEE), varies based on factors like age, sex, weight, height, and physical activity. TDEE includes your Basal Metabolic Rate (BMR) and calories from activities. Most adults’ TDEE ranges from 1,500 to 3,000 calories, affecting weight maintenance and management.
The thermic effect of food (TEF) refers to the increase in metabolic rate following the ingestion of a meal, accounting for the energy expended in digestion, absorption, and assimilation of nutrients. TEF contributes approximately 5-10% of daily caloric intake, with proteins inducing a higher effect compared to carbohydrates and fats. Understanding TEF can aid in dietary planning and weight management by influencing how effectively the body metabolizes nutrients from food.
