Energy balance Energy balance plays a crucial role in both weight management and overall health. Let’s delve into the details: Energy Balance Basics: Energy in: Refers to the calories consumed through food and drink. Energy out: Represents the calories expended by the body for daily energy requirements, including resting metabolic rate, physical activity, and digestion. Equilibrium: When energy intake equals energy expenditure, weight remains stable. Positive energy balance: Occurs when intake exceeds expenditure, leading to weight gain. Negative energy balance: Arises when intake is less than expenditure, resulting in weight loss
Impact on Weight: Positive Energy Balance: Weight Gain: Consistently consuming more calories than needed leads to weight gain. Body Fat Accumulation: Excess energy is stored primarily as body fat over time. Health Risks: Increased adiposity (body fat) is associated with cardiovascular disease, diabetes, hypertension, and other chronic conditions. Negative Energy Balance: Weight Loss: When the body detects an energy deficit, it taps into fat reserves to compensate. Metabolic Changes: Severe negative energy balance can reduce metabolism, bone mass, thyroid hormones, and testosterone levels. Non-Survival Functions: The body prioritizes survival by slowing down non-essential functions during energy scarcity
Beyond Weight: Cellular Impact: Energy balance affects cellular processes, including metabolism and hormonal balance. Hormonal fluctuations impact mood, concentration, and physical performance. Health Implications: Overfeeding (positive balance) can lead to health risks like insulin resistance, increased blood pressure, and plaque buildup in arteries. Underfeeding (negative balance) affects overall health and cellular fitness