Yes, fasting can indeed make you feel cold.
While experiencing chills during a fast might be uncomfortable, it's generally a normal physiological response. Your body, during periods of restricted calorie intake, conserves energy by slowing down certain processes, including heat generation. This energy is then redirected to fat-burning processes.
Here's a breakdown of why you might feel colder when fasting:
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Energy Conservation: Your body needs energy to maintain a stable internal temperature. When you're fasting, you're providing less energy through food, so your body conserves what it has. This can lead to a slight drop in body temperature and the sensation of feeling cold.
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Slower Metabolism: Fasting can slow down your metabolic rate. Metabolism is the process by which your body converts food into energy. A slower metabolism means less heat production, which can contribute to feeling cold.
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Hormonal Changes: Fasting can affect hormone levels, including thyroid hormones, which play a crucial role in regulating body temperature. A decrease in certain thyroid hormones can make you more sensitive to cold.
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Fat Burning: As the reference mentioned, energy meant for heat generation is diverted to fat burning.
What you can do:
- Stay Hydrated: Drink plenty of warm fluids, such as herbal tea or broth.
- Dress Warmly: Wear layers of clothing to trap heat.
- Gentle Exercise: Light physical activity can help increase circulation and generate some heat.
- Consider Your Fasting Protocol: If the coldness is unbearable, you might need to adjust your fasting schedule or calorie intake during the fasting window. Consult with a healthcare professional or registered dietitian for personalized advice.
In conclusion, feeling cold during fasting is often a normal sign that your body is adapting to the reduced calorie intake and shifting its energy usage. However, if the feeling of cold is severe or accompanied by other concerning symptoms, consult a healthcare professional to rule out any underlying medical conditions.
