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Does freezing bread make it healthier? US doctor explains how defrosting and toasting changes starches in bread🍞🥖

If you have the habit of popping bread in the freezer, well good news - Dr Sood says you're not only increasing its shelf life but also upgrading it.

Published on: Nov 28, 2025, 13:07:31 IST
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If you pop your bread into the freezer after a grocery run to make it last longer, here’s some good news - you’re not just extending its shelf life, you’re actually upgrading it. Freezing bread triggers changes that can make it healthier, offering benefits for both your gut and your blood sugar.

Read more to discover how you can make bread healthier! (Unsplash)
Read more to discover how you can make bread healthier! (Unsplash)

Also Read | Is leftover biryani healthy? UK surgeon explains the surprising gut health benefits of refrigerated biryani

Dr Kunal Sood, an anesthesiologist and interventional pain medicine physician, has revealed that freezing your bread can surprisingly make it healthier. In an Instagram video posted on November 28, the physician explains that freezing and defrosting bread triggers a process that transforms its starch into a powerful prebiotic, making it healthier for both gut health and blood sugar control.

What happens when bread is frozen?

According to Dr Sood, freezing bread not only prevents it from going stale but can actually make it slightly healthier. He explains, “When bread is frozen and then defrosted, some of the starches go through a process called a retrogradation. That's when part of the starch structure reorganises and turns into what's known as resistant starch.”

Resistant starch is a powerful prebiotic for your gut microbiome and acts more like a fibre than a typical carbohydrate. The physician elaborates, “Your body digests it more slowly, which leads to steadier blood sugar levels and less of a spike after eating. One study even found that freezing and then defrosting white bread reduced post-meal blood sugar spikes by up to 30 percent compared to eating it fresh.

What happens when you toast bread after freezing?

According to Dr Sood, toasting the bread after defrosting strengthens the effects of retrogradation even further. He highlights, “That slower digestion helps not just for glucose control, but also supports gut health since resistant starch feeds the beneficial bacteria in your colon.” So the next time you pop your bread in the freezer, remember - you’re not just preserving it, you’re improving it.

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. It is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.

  • Eshana Saha
    ABOUT THE AUTHOR
    Eshana Saha

    Eshana Saha is a fresh face in lifestyle and cultural journalism, bringing a refined, multidisciplinary perspective to the intersection of entertainment, fashion and holistic wellbeing. With less than a year of professional experience, she has quickly adapted to high-pressure editorial environments and currently works full-time with HT Media. Prior to this, she interned for nearly six months with Hindustan Times’ entertainment and lifestyle vertical, where she gained hands-on experience in digital reporting, trend analysis and editorial storytelling. Based in New Delhi, Eshana specialises in comprehensive coverage of major cultural moments — from international film press tours to the curated aesthetics of global fashion showcases, award shows and music-centred events. She holds a Bachelor’s degree in English from St Xavier’s University, Kolkata, and a Master’s degree in English from the University of Delhi, equipping her with a strong academic foundation and a keen ability to deconstruct complex cultural trends into clear, high-impact narratives. Beyond the red carpet, Eshana has developed a growing focus on health and wellbeing reporting. She bridges the gap between celebrity-driven trends and practical, evidence-informed lifestyle advice, ensuring her work remains both aspirational and grounded in editorial rigour. She has extensively covered the health implications of Delhi’s air pollution crisis, while also playing a key role in amplifying expert-led insights on women’s health and mental wellbeing, helping translate complex medical perspectives into informed, impactful public awareness. An artist at heart, she explores multiple creative forms — from visual arts and music to culinary experiments — and brings a creative’s eye for nuance, texture and detail to every story. Whether analysing runway dynamics or examining emerging wellness movements, she remains committed to accuracy and the highest standards of contemporary journalistic ethics.Read More

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