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How Vitamin D Improves Glucose Tolerance in Diabetes


Our body is naturally equipped to produce some vitamin D on its own. Besides, apart from exposing ourselves to mild sunshine for a few minutes every day, we can also obtain it from dietary sources, such as fish and other sea-food, fortified foods as well as taking vitamin D supplements.

What is glucose intolerance?

Glucose intolerance is a term that is often used to describe abnormal levels of glucose in blood, usually ranging on the higher side. The metabolism and absorption of glucose is important for our body to generate energy and carry out day to day activities. In the absence of this, the blood tends to hold more glucose than required. Also known as hyper-glycaemia, this medical condition can eventually lead to the problem of developing diabetes if ignored and left untreated for long.

Symptoms of glucose intolerance

The indications of glucose intolerance usually include chronic fatigue, flatulence, diarrhoea, nausea and abdominal cramps. Apart from insulin insufficiency or resistance, obesity as well as an excessively sedentary lifestyle only makes this problem worse.

What happens in diabetes?

High blood sugar or diabetes has become one of the most common and chronic health problems among people the world over. Sometimes it is caused when our immune system prevents the sufficient production of insulin, by destroying insulin producing cells in the pancreas. Also known as an auto-immune reaction, this could lead to what is known as Type I Diabetes. Thus, in case of Type I Diabetes, our body is rendered unable to produce enough insulin. Type II Diabetes, on the other hand is the more common form, usually initiated when our body is unable to process or respond to the glucose. It is important to understand that diabetes has a tendency to lead to various life threatening problems such as chronic kidney disease, heart disease, hypertension, heart stroke, cataract and many more.

Effect of insulin

Actually, insulin is produced by our pancreas in order to suck out the sugar and carbohydrates from the food that we consume, and use the same for producing energy. In other words, insulin is primarily responsible for naturally controlling the sugar levels. In order to address the problem of glucose intolerance, our body produces the hormone known as insulin. It is primarily responsible for regulating the sugar / glucose levels in our blood and preventing glucose intolerance from taking place. While in type I diabetes, the production of insulin remains insufficient, in case of type 2 diabetes however, our body stops responding to this hormone. This in turn affects the proper absorption of glucose that we take in the form of food, rendering our body unable to handle any more glucose, thus leading to glucose intolerance.

Vitamin D3 for metabolism of glucose

Scientific studies suggest that sufficient levels of vitamin D3 in our body pave way for proper metabolism of glucose. It is believed that the pancreas, which is the insulin producer in our body, contains vitamin D receptor cells, which prod the pancreas to produce more insulin and therefore, regulate the blood glucose levels in our body. This ‘sunshine vitamin’ also helps improve our body’s resistance and sensitivity to insulin, thereby reducing blood sugar levels and the risk of developing diabetes. Therefore, vitamin D sufficiency can play a prominent role in preventing the onset of the disease. Besides, vitamin D is also important for cell and muscle growth, reducing swelling and inflammation, as well as for fighting infections.

On the other hand, deficiency of vitamin D, especially that of cholecalciferol (vitamin D3) has been linked to insulin resistance and growing chances of setting in of diabetes. Not only this, it may also weaken our bones, and play a role in bone loss, kidney damage, raising the blood pressure levels, and bringing about symptoms of chronic heart disease.

Glucose Intolerance and the Role of Vitamin D

It is believed that vitamin D plays a major role in reversing the symptoms associated with glucose intolerance, thus significantly reducing the chances of suffering from diabetes. Also known as the sunshine vitamin, vitamin D regulates the production of insulin in the pancreas. Sufficient amount of vitamin D also helps improve our body’s resistance towards insulin, thereby reducing blood sugar levels and improving glucose tolerance in the process. Those with a vitamin D deficiency, on the other hand, have often shown increased sensitivity towards insulin. Thus we can understand that vitamin D particularly improves glucose tolerance in case of diabetes.


Sanat regards this product as “A NU Way of Life”! Along with other essential ingredients, NUNERVE-LM tablets contain 1000 IU (25mcg) of Vitamin D3 and one to two tablets / day are indicated for those suffering from the distressing ailments of diabetes, diabetic / peripheral neuropathy, CVD and others.

Dr. Sonica Krishan

Author and Speaker
Healthy and Joyous Living through Ayurveda, Meditation, Yoga and other Contemplative practices.

Published Books
Herbal Healers I Home Remedies I Healing through Ayurveda I Healing through Ayurveda Herbs in your Kitchen Garden I Healthy Living through Dosha Healing (Ayurveda).   |   Blog   |   About Me
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The information on this page is not intended to be a substitute for professional medical advice. Do not use this information to diagnose or treat your problem without consulting your doctor.

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