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TRADITIONAL GRAINS · NUTRITION & HEALTH · 10 MIN READ

Rice has been a staple of Indian diets for centuries. Yet, in recent years, the conversation around rice has changed. With growing awareness of diabetes, blood sugar, glycemic index, healthy carbohydrates and low-GI foods, many consumers are beginning to ask a simple question:

Does eating rice necessarily mean higher blood sugar?

The answer is more nuanced than a simple yes or no.

Rice is not one uniform food. Different varieties can have substantially different nutritional compositions and glycemic responses. Research on Indian rice varieties has demonstrated considerable variation in glycemic index, while factors such as starch composition, amylose content, resistant starch, processing and cooking can influence how quickly carbohydrates are digested.

Among India's traditional rice varieties, Kala Namak rice, also known as Kalanamak rice, has attracted renewed attention for its distinctive aroma, heritage and connection to eastern Uttar Pradesh.

But does that automatically make it a low glycemic index rice or a rice for diabetes?

Not necessarily.

Understanding that distinction is important for anyone looking for reliable information about Kala Namak rice, blood sugar, diabetes and glycemic index.


THE RETURN OF KALA NAMAK

An ancient rice with a distinctly Indian identity

Kala Namak rice is a traditional aromatic rice variety associated with eastern Uttar Pradesh. Kalanamak Rice is recognised under India's Geographical Indications framework.

ICAR describes Kalanamak as a short aromatic landrace from eastern Uttar Pradesh, known for its strong and pleasant aroma and distinctive grain and cooking qualities.

Its significance therefore extends beyond nutrition.

Kala Namak represents the agricultural diversity of India—the traditional rice varieties developed, cultivated and preserved by farming communities over generations.

Today, as consumers become increasingly interested in traditional rice, heritage grains, Indian rice varieties and minimally processed foods, Kalanamak rice is receiving renewed attention.

It is therefore useful to look at Kala Namak from several perspectives:

  • Its traditional and regional identity
  • Its nutritional characteristics
  • Its starch composition
  • Its glycemic response
  • Its processing and cooking
  • Its role in the Indian diet
  • Its connection with farmers and agricultural heritage

WHAT IS THE GLYCEMIC INDEX?

Understanding the number behind “low-GI foods”

The glycemic index (GI) is a measure used to classify carbohydrate-containing foods according to their effect on blood glucose compared with a reference food.

Foods with a higher GI generally produce a faster rise in blood glucose, while lower-GI foods tend to produce a slower and smaller rise.

This has made low glycemic index foods an important topic in nutrition, particularly for people managing diabetes or trying to better understand post-meal blood sugar responses.

However, GI should not be interpreted in isolation.

The amount of carbohydrate consumed also matters. This is why glycemic load (GL) can provide additional context, as it incorporates both the GI of a food and the amount of available carbohydrate consumed.

In practical terms, a food's impact on blood sugar is influenced not only by:

What you eat

but also by:

How much you eat + how it is prepared + what you eat with it.


IS KALA NAMAK RICE A LOW-GI RICE?

This is where the conversation needs to be precise

Kala Namak rice is sometimes promoted online as a healthier or diabetes-friendly rice. However, there is an important distinction between its traditional nutritional reputation and scientifically established glycemic-index data.

There is not enough reliable evidence to state that Kala Namak rice itself has a confirmed low glycemic index.

This does not mean that Kala Namak is an unhealthy rice.

It means that a specific GI value should not be assigned to the variety without appropriate testing.

Scientific studies demonstrate that rice varieties can differ considerably in GI. One Indian study found GI values ranging from 70 to 80 across several varieties, while an aromatic traditional rice variety called Lalat recorded a GI of 50 in that study.

Another study found that commonly consumed Indian varieties such as Sona Masuri, Ponni and Surti Kolam had GI values around 70–77 and were classified as high-GI foods.

The important lesson is clear:

Not every rice behaves the same way in the body. But the name, colour or traditional status of a rice cannot by itself establish its glycemic index.

Therefore, the most accurate answer to “Is Kala Namak rice low GI?” is:

Its GI should not be assumed to be low unless supported by variety-specific testing.


KALA NAMAK RICE: POTENTIAL NUTRITIONAL & DIETARY CONSIDERATIONS

Looking beyond the “healthy rice” label

Searches for Kala Namak rice benefits, Kala Namak rice nutrition and Kala Namak rice nutritional value are becoming increasingly common.

However, it is important to distinguish between established nutritional characteristics and health claims that have not been specifically demonstrated for Kala Namak rice.

Kala Namak can be considered in the broader context of traditional rice varieties, where characteristics such as starch composition, amylose, resistant starch, dietary fibre, processing and cooking method can influence nutritional and glycemic outcomes.

Potential areas of nutritional interest include:

1. Traditional grain characteristics

Kala Namak is a traditional aromatic rice variety with a distinctive regional identity. Its value is not limited to a single nutritional characteristic.

2. Starch composition

Like other rice varieties, Kala Namak contains starch, which contributes substantially to its carbohydrate content. The structure and digestibility of that starch can influence glycemic response.

3. Resistant starch

Resistant starch is a form of starch that is not completely digested in the small intestine in the same way as rapidly digestible starch. Research on rice varieties has associated higher resistant-starch content with lower glycemic responses in some cases.

However, this does not mean that every rice containing resistant starch is automatically a low-GI food.

4. Dietary context

The nutritional value of rice should be considered as part of the overall meal. Pairing rice with vegetables, pulses, protein sources and other nutrient-dense foods can create a more balanced meal than consuming rice in isolation.

5. Processing and preparation

Milling, polishing and cooking can influence the physical structure and digestibility of rice starch. Therefore, the rice in the final meal may behave differently from the raw grain.

What about calories, protein and carbohydrates?

The exact nutritional value of Kala Namak rice depends on the specific product, processing method and serving size.

For this reason, calories, protein, carbohydrate, fibre and other nutritional values should be taken from verified laboratory testing or the product's nutrition label, rather than assumed from the variety name.

Important: Nutritional characteristics should not automatically be converted into medical claims such as “prevents diabetes,” “controls blood sugar” or “cures diabetes.”


RICE AND DIABETES

Does having diabetes mean you must stop eating rice?

Rice is often one of the first foods people are told to eliminate after being diagnosed with diabetes.

But diabetes nutrition is more complex than simply removing one carbohydrate.

The amount of carbohydrate, portion size, rice variety, degree of processing, cooking method and the other foods consumed in the same meal can all influence the overall glycemic response.

Research has shown that different rice varieties can produce substantially different glucose responses. Studies have also investigated the relationship between characteristics such as amylose, resistant starch and glycemic response.

This means the better question may not be:

“Can someone with diabetes eat rice?”

but rather:

“Which rice, in what portion, prepared how, and as part of what meal?”

For individuals with diabetes, personal dietary requirements vary. Rice choices and portions should be considered within an overall dietary plan and, where necessary, discussed with a qualified healthcare professional or registered dietitian.

Is Kala Namak rice good for diabetes?

There is currently insufficient evidence to categorically describe Kala Namak rice as a diabetes-friendly rice or to claim that it is specifically beneficial for diabetes.

However, that does not mean that someone with diabetes must automatically avoid it.

The appropriate choice depends on the individual's dietary requirements, portion size, overall meal composition and blood glucose response.


WHY RICE VARIETY MATTERS

Rice is not nutritionally identical across varieties

Two varieties of rice can look similar on a plate but behave differently during digestion.

Research has identified relationships between glycemic response and characteristics including resistant starch and amylose.

In one study of Indian rice varieties, resistant starch was negatively correlated with GI and explained a substantial proportion of the observed variation in GI.

Another study comparing a high-fibre rice with commercial white rice found that the higher-fibre variety had greater dietary fibre, resistant starch and amylose and produced a lower GI.

At the same time, amylose alone does not explain everything.

Research has shown that rice varieties with similar amylose levels can still differ in starch digestibility and glycemic response because of other physicochemical characteristics.

This is why:

“Healthy rice” cannot be defined by a single characteristic.


THE ROLE OF RESISTANT STARCH

A different way to look at carbohydrates

Resistant starch is a form of starch that is not completely digested in the small intestine in the same way as rapidly digestible starch.

It has attracted attention in nutrition research because of its relationship with digestion, gut fermentation and glycemic response.

In rice research, higher resistant-starch content has been associated with lower glycemic responses in some varieties.

This has contributed to growing interest in resistant starch, low-GI foods and traditional rice varieties.

However, the presence of resistant starch does not automatically make a rice variety suitable for everyone with diabetes.

The overall dietary pattern still matters.


DOES BROWN OR TRADITIONAL RICE ALWAYS MEAN LOW GI?

Colour is not enough

It is tempting to assume that brown, red, black or traditional rice must automatically have a lower glycemic index than white rice.

Scientific evidence does not support such a simple rule.

Research has specifically shown that the glycemic index of rice cannot be reliably predicted simply from the colour of the grain.

Similarly, the degree of milling can influence glycemic response. In one study of an Indian parboiled rice variety, brown rice had a lower GI than under-milled and white rice, while greater polishing was associated with higher glycemic responses.

Therefore, consumers should look beyond visual appearance.

The nutritional profile, processing, cooking method and portion all matter.

This is particularly relevant when evaluating claims around brown rice, black rice, red rice, traditional rice and low-GI rice.


WHAT ABOUT COOKING?

Preparation can influence the final glycemic response

The rice that enters the body is not exactly the same as the raw grain that comes out of the package.

Cooking changes the structure of starch through processes such as gelatinisation. Cooking method, degree of cooking and subsequent handling can therefore influence digestibility and glycemic response.

Studies comparing cooking methods and rice varieties have found differences in GI depending on the variety and preparation method.

This makes the phrase “low GI rice” more complicated than it may appear on a product label or social-media post.

The GI of a food is not simply a property of its name.

It is the result of interactions between:

Variety + composition + processing + preparation + digestion


PORTION SIZE MATTERS

GI is only part of the picture

Even when discussing a lower-GI food, portion size remains important.

A carbohydrate-containing food can contribute a significant amount of carbohydrate to a meal depending on the quantity consumed.

This is one reason why glycemic load (GL) can provide additional context.

Instead of looking only at how quickly carbohydrate may affect blood glucose, GL also considers the amount of available carbohydrate consumed.

For anyone managing blood sugar, the practical takeaway is straightforward:

A food's glycemic effect depends not only on what it is, but also on how much is consumed.


THE INDIAN PLATE MATTERS

Rice does not have to be eaten alone

A typical Indian meal rarely consists of plain rice by itself.

Rice may be eaten with dal, rajma, chana, vegetables, curd, paneer, fish, eggs or other foods.

This matters because the overall meal provides a combination of carbohydrates, protein, fat and fibre.

For example, combining a carbohydrate-rich staple with protein-rich pulses and fibre-rich vegetables creates a nutritionally more complete meal than consuming the carbohydrate source in isolation.

This does not mean that meal combinations eliminate the effect of carbohydrates on blood glucose.

It simply reinforces an important principle:

Nutrition should be evaluated at the level of the overall meal and dietary pattern, not only one ingredient.


KALA NAMAK AND TRADITIONAL FOOD CULTURE

Health is only one part of its story

The growing interest in Kala Namak should not be limited to the question of diabetes.

Its importance also lies in agricultural heritage.

Traditional rice varieties represent genetic and cultural diversity within India's food system. Their preservation can support agricultural biodiversity while maintaining connections with regional food traditions.

ICAR has described Kalanamak as a traditional aromatic landrace of eastern Uttar Pradesh and has documented breeding efforts aimed at improving its productivity while retaining its characteristic quality traits.

This makes Kala Namak relevant to a much broader conversation about:

traditional grains, crop diversity, sustainable agriculture, farmer livelihoods and India's food heritage.


FROM TRADITIONAL GRAIN TO MODERN FOOD CHOICE

Why consumers are looking beyond conventional staples

The growing interest in traditional rice varieties reflects a broader shift in consumer behaviour.

People are increasingly asking questions about:

  • Where was the grain grown?
  • Which variety is it?
  • How was it cultivated?
  • How much has it been processed?
  • How was it stored?
  • Can its origin be traced?
  • What is its nutritional profile?

These questions are particularly relevant as consumers move towards clean-label foods, minimally processed foods, traditional Indian foods and farm-to-fork products.

The modern consumer is not simply buying rice.

Increasingly, they are looking for information about the agricultural and processing story behind it.


THE FARMER CONNECTION

Preserving traditional rice also means preserving agricultural knowledge

Traditional crops survive because farmers continue to cultivate them.

Maintaining demand for heritage varieties can therefore create an economic connection between consumer preference and agricultural conservation.

Farmer Producer Organisations can play an important role in this ecosystem by aggregating produce, supporting market access and helping connect farmer communities with organised food businesses.

This is particularly important for traditional varieties that may have smaller production ecosystems compared with highly commercialised mainstream crops.

The future of traditional rice therefore depends not only on consumer awareness.

It also depends on:

Farmer viability + market access + quality management + reliable value chains


THE BMS NATURALS CONNECTION

Bringing traditional Indian food closer to the consumer

BMS Naturals' Farm-to-Fork approach is built around creating stronger connections between agricultural communities, Farmer Producer Organisations and consumers.

Its sourcing network includes traditional agricultural products such as grains, pulses, honey and oilseeds, helping connect farmer collectives with the organised food value chain.

The same philosophy is relevant to traditional rice.

A product such as Kala Namak is not simply a grain inside a package.

It represents:

A crop + a region + farmers + agricultural practices + a food tradition

that has continued across generations.

The opportunity for modern food businesses is to preserve that agricultural identity while applying appropriate quality, processing and traceability standards.

For consumers, this creates a more meaningful connection between traditional food, farmer communities and the modern Indian kitchen.


FREQUENTLY ASKED QUESTIONS

Is Kala Namak rice good for diabetes?

There is not enough variety-specific evidence to categorically describe Kala Namak rice as a diabetes-friendly rice. People with diabetes should consider portion size, preparation, overall meal composition and their individual dietary requirements.

Is Kala Namak rice low GI?

A low GI value should not be assumed for Kala Namak rice without reliable variety-specific testing. Rice GI can vary according to variety, starch composition, processing and cooking.

What is the glycemic index of Kala Namak rice?

A confirmed GI value for Kala Namak rice should be based on appropriate testing of the specific variety and preparation. Published GI values from other rice varieties should not automatically be applied to Kala Namak.

Can diabetics eat Kala Namak rice?

Whether someone with diabetes can include Kala Namak rice depends on their individual dietary plan, portion size and overall meal composition. A qualified healthcare professional or registered dietitian can provide personalised guidance.

Is Kala Namak rice healthier than white rice?

It is not accurate to declare one rice universally healthier than another. Nutritional characteristics can differ between varieties, while processing, cooking and portion size can also influence dietary outcomes.

What are the benefits of Kala Namak rice?

Kala Namak's significance includes its traditional identity, distinctive aroma, regional heritage and place within India's agricultural biodiversity. Its specific nutritional or health benefits should be evaluated using verified nutritional and scientific evidence rather than broad claims.

What is the nutritional value of Kala Namak rice?

The nutritional value depends on the specific product and processing. For exact calories, carbohydrates, protein, fat, fibre and micronutrient values, consumers should refer to verified laboratory analysis or the product's nutrition label.

Does cooking affect the glycemic index of rice?

Yes. Cooking can change starch structure and digestibility, and studies have found differences in glycemic response depending on rice variety and preparation method.

Does the colour of rice determine its GI?

No. Rice colour alone cannot reliably determine glycemic index. Variety, starch characteristics, processing, cooking and portion size can all influence glycemic response.


THE ROAD AHEAD

From “healthy rice” to informed rice choices

The discussion around rice and diabetes is often reduced to a simple choice between eating rice and avoiding it.

The science is more complex.

Different rice varieties can have different glycemic responses. Processing, polishing, cooking, starch characteristics and portion size can all influence the way rice affects blood glucose.

For Kala Namak rice, the most responsible conclusion is therefore not to label it automatically as a low glycemic index rice or a diabetes-friendly rice without variety-specific GI evidence.

Instead, its value can be understood across several dimensions:

  • Traditional rice heritage
  • Agricultural biodiversity
  • Distinctive aroma and cooking characteristics
  • Regional identity
  • Starch and nutritional characteristics
  • Its place within a diverse Indian diet
  • Its connection with farming communities

For people managing diabetes, the appropriate rice variety, portion size and overall meal pattern should be considered according to individual nutritional needs and professional medical or dietary advice.

The larger lesson is perhaps more important than the rice itself.

Healthy eating is not about finding one perfect grain. It is about understanding the food on our plate—its variety, its composition, its preparation, its portion and the agricultural system that brought it there.

And sometimes, looking forward in food means looking carefully at what India has been growing all along.

BMS Naturals