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Causes of dizziness after eating sugar

by Alivia Nyhan
Published: Last Updated on

Sometimes it can happen that after eating something sweet, a severe headache accompanied by dizziness appears in the body. This symptom can be due to many factors, but it is certainly an important sign to start monitoring blood glucose levels to rule out any conditions related to sugar, insulin production, and pancreas function. If you have frequently been dizzy after eating sugar, we invite you to continue reading this article by FastlyHealwhere we answer the question: why do I eat sugar and get dizzy?

Simple carbohydrates? Hyperglycemia!

Identifying what types of foods we eat is very important to know why dizziness occurs when we eat sugar. It is vital to understand that there are many foods that turn into blood sugar and we do not know it, that is, sweet foods are not the only ones that contain sugar, although they tend to be the ones that have the most sugar.

Carbohydrates are the food group that provides more sugar to the body, among them we find potatoes, bread, pasta, cassava, fruits, flours, pastries and everything that is sweet. However, there are simple carbohydrates and complex carbohydrates . When the carbohydrate is simple, the sweeter it tastes and the sweeter, the faster it is absorbed by the body when we consume it. Therefore, when we eat a chocolate cake, filled with chocolate covered with chocolate, all that sugar enters the blood almost instantly and raises glucose levels, causing hyperglycemia. This process, because it occurs very quickly, can trigger dizziness and headaches. immediately, as it hinders the blood supply and increases the pressure on the walls of the arteries.

It is important to note that fructose and lactose also convert to glucose in the blood, so it can be useful to monitor whether dizziness also occurs after eating fruits and dairy products or occurs only when we eat very sweet foods. If it is the latter, you already know that it is an effect of the simple carbohydrate in your body that you should be monitoring. If, on the contrary, you get dizzy every time you eat any type of food that is transformed into glucose, then we invite you to continue discovering the possible causes of this discomfort.

Insulin resistance

A diet rich in fat and simple carbohydrates constantly stimulates processes like the one we explained in the previous section. When the body receives constant doses of sugar, the pancreas, which secretes insulin to regulate glucose levels, tends to release a lot of insulin in the body. Excessive sugar intake, a sedentary lifestyle, high-fat food, and being overweight can cause cells to misuse all that idle insulin, wasting it and allowing high blood sugar levels to persist.

The insulin resistance is part of the metabolic syndrome is often accompanied by polycystic ovaries abdominal in women, high cholesterol and fat around the waist. Among the symptoms of insulin resistance, dizziness stands out after eating very sweet foods. Fortunately, if treated in time, this condition is fully controllable and may not pose a health risk. However, as it is a silent condition, many times its evolution ends up wearing down the pancreatic function to the point that the person begins to suffer from type 2 diabetes.

Undiagnosed type 2 diabetes

Type 2 diabetes , one in which the pancreas no longer releases enough insulin to control blood glucose levels, is usually caused by maintaining a poor diet rich in sugar and fat for many years, leading a sedentary life, having high levels of cholesterol and triglycerides and being obese or overweight.

The bad food for so many years causes the pancreas to wear their function to the point that insulin little produces, is not enough to normalize the high levels of glucose that the body has even fasting, when the body has more than eight hours does not consume any type of food. Treating this disease properly is very important to maintain health, since diabetes is degenerative, that is, if it is not controlled it causes lethal damage to different parts of the body.

Among the symptoms of diabetes , dizziness after eating sugar , frequent urination at night, blurred vision, high blood glucose, involuntary weight loss, irritability, anxiety to eat sweets and increased thirst stand out. Changing eating habits, eating more vegetables, completely eliminating the consumption of sweets and simple carbohydrates, taking glucose and cholesterol regulating medications, exercising and being constant in medical control is vital to control this disease.

Tips to avoid dizziness after eating sugar


In healthy people, when the blood plasma is fluid deficient and suddenly receives a high dose of glucose, it immediately causes dizziness as a reaction to dehydration and hyperglycemia. Two liters of water a day is the recommended amount.

Cut down on simple carbohydrates

If you know that you have been having problems with your blood glucose levels, reduce the intake of sweets and simple carbohydrates and consume them only once a week.

Increase your fiber intake

Fiber helps absorb fat accumulated in the body and prevent it from turning into glucose. Get it in watercress, broccoli, oatmeal, bran, whole wheat pasta, and brown rice.


If you have diabetes or insulin resistance, be consistent in taking your medications to avoid times when your glucose gets too high and compromises your health.

Forget about sugar

Simple sugar, the one we add to coffee to sweeten it, is a sin for glucose levels and for health in general. It is highly recommended to completely suspend its consumption and replace it with saccharin or natural sweeteners such as stevia .

Eat healthy

A balanced diet that includes all food groups in moderation is ideal to avoid disorders with glucose, triglycerides and cholesterol. Green leafy vegetables help reduce blood glucose levels, watercress will always be the best option.


It prefers the integral version and low in sugar of the products that you consume, since in addition to preventing alterations in glucose, they are very rich in fiber.

This article is merely informative, at FastlyHeal .com we do not have the power to prescribe medical treatments or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.

If you want to read more articles similar to Why I eat sugar and I get dizzy , we recommend that you enter our Brain and Nerves category .

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