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1. Explain the concept of energy balance and its importance
in weight loss.
Answer: Energy balance refers to the relationship between
the calories consumed through food and the calories
expended through physical activity and bodily functions. It
is crucial in weight loss as a negative energy balance,
where calorie expenditure exceeds intake, leads to a
reduction in body weight.
2. Describe the physiological factors that contribute to
weight gain.
Answer: Weight gain can be influenced by factors such as
genetics, hormonal imbalances (e.g., insulin resistance),
metabolic rate, and appetite regulation. Additionally,
sedentary lifestyle, unhealthy dietary habits, and
psychological factors (e.g., stress eating) can also
contribute to weight gain.
3. Discuss the role of macronutrients in weight loss and
body composition.
Answer: Macronutrients, including carbohydrates, proteins,
and fats, play vital roles in weight loss and body
composition. Carbohydrates provide energy for physical
activity, proteins help in tissue repair and muscle building,
and fats contribute to nutrient absorption and hormone
regulation. A balanced intake of all macronutrients is
essential for successful weight loss and proper body
composition.
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