Why do I feel light headed after eating?

In this brief article we will answer the query,”Why do I feel light headed after eating?” We will look at various reasons that can lead to this. We will also discuss some things that you can do to reduce feeling dizzy after eating.

Why do I feel light headed after eating?

There are various reasons that may cause you to feel light headed after eating and these are low blood sugar levels, low blood pressure, taking diabetes medications, consumption of specific foods.

We will take an indepth look at some of these reasons.

Why do I feel dizzy after eating?

As mentioned above feeling light headed after having a meal can be caused various things as below:

Low blood sugar levels

After eating food, the blood sugar usually rises and this is why people who usually feel dizzy before having a meal often feel much better after eating.

However, in some people their blood sugar levels can drop after having a meal and thus can result in dizziness in a condition that is known as reactive hypoglycemia.

People that have diabetes or prediabetes may experience a drop in their blood sugar levels after eating because there is production of too much insulin by their bodies.

Even people who do not have diabetes can as well get this type of hypoglycemia too. For instance, people that have undergone surgery of the stomach can digest foods much faster and this becomes difficult for their bodies to absorb glucose.

Deficiencies of some types of enzymes can also lower the levels of blood glucose.

If you tend to experience dizziness after eating, you can alleviate this by eating small portions of foods with low sugar content more frequently.

Low blood pressure

Some people may also experience a drop in their blood pressure suddenly after having a meal in a condition known as postprandial hypotension.

This is more common in people that have high blood pressure because high blood pressure may cause the hardening and blockage of the arteries therefore making it harder for blood to flow to the brain as well as the digestive system. This reduced blood flow to the brain is what leads to feeling dizzy.

The eldery, people that have Parkinson’s disease and those with nervous system disorder are usually at more risk of having postprandial hypotension.

You can alleviate this by taking water before eating and also consuming small meals more frequently.

Diabetes medications

Some medications used to treat diabetes such as insulin can also result in dizziness when they reduce the level of glucose too much.

People that take such medication just before eating may feel dizzy as the medication takes effect.

People that have diabetes and who regularly feel dizzy after eating should consult a medical doctor on how to reduce this such as switching their meds, lowering the dosage or adjusting their meal schedules.

Food sensitivities

Another cause of dizziness after eating is sensitivities to certain foods. Some drugs and chemicals such as alcohol and caffeine can also result in dizziness after eating.

If you usually feel dizzy after eating, it is recommended that you be noting down what you eat before experiencing these episodes of dizziness.

This can assist in identifying the specific foods or group of foods that may be resulting in your dizziness after eating.

What can I do to reduce feeling dizzy after eating?

Opt for foods that are digested longer

Select foods that usually take longer to digest such as whole grains, veggies and fruits. This is because foods that are high in sugar and also refined carbs such as white bread an white rice are digested faster and can increase the risk of postprandial hypotension.

Take plenty of water

It is important to drink plenty of water before eating. Drinking a glass or 2 glasses of water can aid in boosting the volume of a person and this makes their blood pressure less likely to drop.

Avoid trigger foods

Steer clear of foods such as caffeine, alcohol and foods that have high levels of sodium because they usually increase the risk of being dehydrated.

Eat small portions of foods more frequently

Instead of having a few heavy meals, it is recommended that you eat several small meals. This is because the body requires more energy and blow flow to digest heavy meals and therefore consuming small meals can help lower dizziness after eating.


In this brief article we have answered the query,”Why do I feel light headed after eating?” We have looked at various reasons that lead to this. We have also discussed some things that you can do to reduce feeling dizzy after eating.



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