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Are fasting days useful?
Pregnancy

Are fasting days useful?

2 min readWeek 35
Key takeaways
2 min
  • Avoid creating strict fasting days during pregnancy as severe dietary restrictions can lead to overeating and nutritional deficiencies.
  • Focus on eliminating weight-gain promoting foods like white bread, processed meats, and sugary cereals instead of extreme dieting.
  • Replace unhealthy options with whole grain breads, lean proteins like fish and poultry, and fresh fruits and vegetables for optimal nutrition.
  • Consider that some forms of intermittent fasting may reduce gestational diabetes risk, but consult your healthcare provider before starting any fasting regimen.
  • Maintain steady, healthy eating patterns during weeks 34-40 to support both maternal health and baby's development while preventing excessive weight gain.

Fasting days during pregnancy are not recommended as severe dietary restrictions can lead to overeating and nutritional deficiencies. Instead, focus on eliminating processed foods and eating consistent, balanced meals with whole grains, lean proteins, and fresh produce for optimal maternal and fetal health.

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Are fasting days useful?

Doctors may grow concerned if mothers gain a lot of extra weight near the end of pregnancy as being overweight is often associated with the development of gestational diabetes and preeclampsia, which can lead to complications in childbirth.

It is also the main reason for macrosomia (too large a child, due to which natural childbirth becomes impossible). In addition, gaining extra pounds in the last few weeks of pregnancy can make it harder to lose weight after childbirth [1]. But during 34 to 40 weeks, you can make choices to support your health and your baby’s.

You do not need to invent fasting days for yourself. For many people, severe, short-term diet restrictions cause them to overeat in the long run. It can be more effective to simply avoid foods [2] that most often lead to excess weight gain, including:

  • white bread;

  • sweet breakfast cereals and instant cereals;

  • pastries and sweets;

  • chips;

  • processed meat (sausage, ham);

  • energy drinks.

How can they be replaced?

  • whole wheat bread;

  • sugar-free granola and whole grain cereals;

  • fruits and vegetables;

  • fish and poultry;

  • milk.

Some mama’s may choose to try intermittent fasting. Long-term observations of Islamic women showed that during Ramadan (a period of intermittent fasting), pregnant women gain less weight and the likelihood of developing gestational diabetes decreased by one and a half times [3].


Frequently asked questions

Fasting days are generally not recommended during pregnancy as severe dietary restrictions can lead to overeating later and nutritional deficiencies. It's safer to focus on eating balanced, nutritious foods consistently throughout pregnancy.

Avoid white bread, sweet cereals, pastries, chips, processed meats, and energy drinks as these contribute to excessive weight gain. Replace them with whole grains, lean proteins, fruits, and vegetables for better nutrition.

Some studies suggest intermittent fasting may reduce gestational diabetes risk by 1.5 times, based on observations of pregnant women during Ramadan. However, always consult your doctor before trying any fasting approach during pregnancy.

Focus on nutrient-dense foods like whole grains, lean proteins, and fresh produce while avoiding processed foods and sugary snacks. Maintain regular, balanced meals rather than restrictive dieting during weeks 34-40.

Excessive pregnancy weight gain increases risks of gestational diabetes, preeclampsia, delivery complications, and macrosomia (large baby). It can also make postpartum weight loss more difficult for mothers.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

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Medically reviewed content

Reviewed by healthcare professionals · Updated June 5, 2025

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