Can Diets Make You Tired

Can Diets Make You Tired


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Dieting can be an effective way to become healthier and healthier, but can it make you tired? While dieting usually leads to improved energy levels, there are times when it may backfire and leave you feeling winded and fatigued. Learn more about what could be causing diet-related tiredness, and ways to combat the fatigue you may experience.

Types of Tiredness from Dieting

Feeling tired while dieting is a common occurrence. It can manifest in two different ways: mental fatigue or physical exhaustion. Mental fatigue may stem from deprivation of certain cravings, like sugar or unhealthy foods, which can lead to feeling irritable, low on energy, and lack focus. Physical exhaustion often occurs when you reduce your calorie intake dramatically, resulting in weakness, dizziness, and general fatigue.

Potential Culprits

Tiredness from dieting can be caused by several factors. Lack of essential nutrients is a key contributing factor, as dieting can lead to a deficiency in essential vitamins and minerals. Additionally, overly restrictive eating can also lead to fatigue, as it can cause low energy levels. Finally, dehydration is also a big culprit, as even mild dehydration can cause tiredness and fatigue. This is especially true if you are not replacing the fluids that you are losing through exercise or sweat.

Tips to Combat Diet-Related Tiredness

  • Adjust your calorie intake gradually. Going too low with your calorie intake can lead to fatigue.
  • Eat a balanced diet. Be sure to get the right amounts of essential nutrients like proteins, carbohydrates, vitamins, and minerals.
  • Keep yourself hydrated. Aim for at least 8 glasses of water per day.
  • Exercise regularly. Regular exercise helps reduce stress and can help reduce the feeling of fatigue.
  • Eat healthy snacks. Eating healthy snacks throughout the day can help maintain your energy levels.
  • Get adequate sleep. Try to get 7 to 8 hours of restful sleep every night.


Dieting can be a great way to become healthier, but it can also lead to fatigue if not done properly. While there are many potential culprits for feeling tired while dieting, there are ways to combat the problem. Be sure to get adequate nutrition, stay hydrated, exercise regularly, eat healthy snacks, and get enough restful sleep in order to keep your energy levels high.