AIIMS-trained gastroenterologist shares cheat sheet for reading food labels: ‘First three ingredients matter most’
Dr Sethi suggests going through the ingredient list to avoid unhealthy products, cautioning that words like ‘natural’ or ‘low-fat’ does not guarantee health.
Shopping for food and groceries has become an increasingly complicated task, whether done physically in supermarkets or virtually online. With an ever-increasing number of brands offering the same products that are marketed in a similar fashion, the onus shifts on the consumer to make the right choice.

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This can be confusing if an individual is not clear about exactly what to look for while purchasing food items. Taking to Instagram on January 13, Dr Saurabh Sethi, a California-based gastroenterologist trained in AIIMS, Harvard, and Stanford Universities, addressed the issue specifically in terms of blood sugar and metabolic health.
1. Start with the ingredient list
While the front of the food packaging is what beckons us to a product, we should always start examining it with the list of ingredients that is usually at the back.
Many brands use words such as “natural,” “low-fat,” or “keto” on the package. However, Dr Sethi cautioned that it does not reveal how the product affects blood sugar; only the ingredients do.
2. First three ingredients matter most
The list of ingredients on food packaging is arranged by weight, shared Dr Sethi. As such, the first three are most significant in terms of their impact on health. If sugar, refined starch, or refined oil appears early in the list, the food is likely to cause blood sugar swings.
3. Danger of ‘low-fat’ or ‘fat-free’ foods
Foods advertised as “low-fat” or “fat-free” are often high in sugar or starch content, as one is often traded for the other. This results in worse glucose spikes.
4. Short ingredient lists usually win
If most of the items present on the list of ingredients are unrecognisable to an average consumer, the food is likely to be heavily processed. Simple foods result in steadier blood sugar, noted Dr Sethi.
5. Watch for hidden sugars
Sugar is added to foods under many names, such as cane sugar, dextrose, corn syrup, rice syrup, fruit juice concentrate, and maltodextrin. While the names may be different, they result in similar glucose spikes in the blood.
6. Opt for high fibre
The net carbohydrate received from any food is the total carbohydrate present in it minus the amount of fibre, stated Dr Sethi. Fibre slows down digestion and reduces blood sugar spikes, he added.
7. Macronutrient balance matters
Foods that are rich in carbohydrates alone can cause rapid glucose spikes. However, those that offer a balance between carbohydrates, protein, fibre, and fat result in a steadier blood sugar response.
Thus, when it comes to packaged food, the better choices are the ones with:
- Short, recognisable ingredients list
- Whole foods as the base
- Minimal or no added sugars
- Protein, fibre, and fat together with carbs
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.
ABOUT THE AUTHORDebapriya BhattacharyaDebapriya 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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