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Gastroenterologist shares 6 guidelines to safely approach intermittent fasting: Start slow, hydrate properly…

Intermittent fasting has grown in popularity as a eating habit. However, it is important to approach the habit in a safe and sustainable way, says Dr Manickam. 

Published on: Feb 19, 2026, 21:19:26 IST
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Intermittent fasting has become an increasingly popular dieting habit in recent times. As the name suggests, it is an eating plan that switches between eating and fasting on a regular schedule.

A healthy diet is essential even while following intermittent fasting, shares Dr Manickam. (Pexel)
A healthy diet is essential even while following intermittent fasting, shares Dr Manickam. (Pexel)

According to the Johns Hopkins Medicine website, the system works by prolonging the time period between meals, which provides the body the opportunity to burn through the calories consumed in the last meal and start burning fat.

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A number of health benefits have been linked with intermittent fasting. These include:

  • Boost in thinking and memory
  • Improved heart health
  • Improved physical performance
  • Better control of type 2 diabetes
  • Lower risk of obesity

However, one should approach intermittent fasting with care to avoid starving and harming their health, rather than improving it. Taking to Instagram on February 17, American board-certified gastroenterologist Dr Palaniappan Manickam, shared how.

1. Start slow

Dr Manickam advised taking it slow while intermittent fasting for the first time. Instead of fasting 18 to 20 hours at the very beginning, it is better to gradually increase the fasting time.

One should begin by dividing the day into two 12-hour periods for eating and fasting, and then increasing the fasting time to 14 hours and then 16 hours, if comfortable. The body takes time to adapt, highlighted the gastroenterologist.

2. What one eats still matters

“Fasting does not cancel junk food,” noted Dr Manickam. During the eating period, it is still important to eat a healthy diet. That includes starting meals with protein, and prioritising fibre-rich foods, healthy fats and whole foods. Poor food choices lead to fatigue and more cravings.

3. Hydrate properly

Dehydration feels like hunger, and therefore, one should be well-hydrated throughout the fasting period. Drinks that are good for consumption include water, plain tea, and black coffee (in moderation). It is best to avoid sugary drinks and sweetened “fasting” beverages.

4. Don’t ignore red flags

Fasting is meant to improve one’s health and not harm it. It is better to consult the doctor if one feels:

  • Persistent dizziness
  • Severe weakness
  • Hormonal irregularities
  • Binge-restrict cycles

5. Intermittent fasting is not for everyone

While there are known health benefits of intermittent fasting, it is not well-suited for every individual. Dr Manickam suggests seeking medical advice if a person considering the eating plan falls under the following categories:

  • Pregnant/breastfeeding
  • Underweight
  • Has a history of eating disorders
  • Has uncontrolled diabetes
  • Has a chronic illness

6. Focus on sustainability

According to Dr Manickam, the best diet is one that can be maintained. Thus, if a person is overeating during the eating window, feeling constantly irritable and unable to sustain long-term, then intermittent fasting is likely not the right protocol for them.

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.

This report is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.

  • Debapriya Bhattacharya
    ABOUT THE AUTHOR
    Debapriya Bhattacharya

    Debapriya Bhattacharya is a Content Producer at Hindustan Times. He started his career in 2022, working in newsrooms in beats like education, US news, trending stories, and entertainment. In his new role in the lifestyle desk, he seeks to deliver a balanced blend of research-driven reporting and creative storytelling from health and recipes to art and culture. Science, philosophy, food and pop culture are what pump his veins and help bring heart to his stories. Debapriya tries to see out subjects that will allow him and readers to explore new frontiers and improve the quality of life for all. The explorations can be both external and internal, as thoughts seek to be as chaotic as the greater universe. As a citizen of the world, Debapriya has been fascinated by the lives of people across the globe throughout time. His curiosity leads him to explore new linguistic and cultural landscapes to broaden his horizons and deepen his understanding of global narratives. Beyond the newsroom, Debapriya loves to participate in debate and theatre, spaces that he considers to be holy grounds for nuance and self-expression. A graduate from Ashutosh College, University of Calcutta, Debapriya completed his Master's degree from the same university in 2022. An ambiverted bibliophile, he loves his solitude as much as he adores stimulating conversations. And despite his reverence for tech, libraries continue to be his favourite place for research.Read More

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