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What Causes Dizziness After Eating?

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Posted on Tue, 4 Aug 2015
Question: after eating sometimes i feel dizzy, darkness around my eyes and a very mild headache and like I might pass out. I just ate. Prewashed quinoa, dehydrated carrot, onion, tomato, garlic. Per the package, I have 4 grams of fat, (0 saturated fat, 0 transfat), Cholestorol 0, Sodium 360mg, Dietary Fiber 4.5g, sugar 3 g, Protein 9 grams.
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Answered by Dr. Dr.Albana Sejdini (18 minutes later)
Brief Answer:
Possible oscillations in blood pressure/glucose levels as following...

Detailed Answer:
Hi,

I understand your concerns.

Having a feeling of dizziness, darkness around eyes, mild headache and feeling like passing out after eating is suggestive for possible:
- low blood pressure (bp)
- low blood glucose level (bgl)

I usually advise my patients with the same problems as you to measure the bp and bgl when they have such episodes.

In your case, you have eating garlic which is known to reduce bp and give the symptoms similar to yours.

It has nothing to do with calories you take, but with what you take and how they affect your bp and bgl.

Another possible option could be if you have eaten fast and large portions. This will cause compression of vagal nerve (which is also called vaso-vagal reaction).

I advise to:
- eat often and small portions, chew up slowly
- avoid foods/spices that would cause low bp or bgl like garlic,etc.
- increase water intake

Hope it was of help!
Dr.Albana
Note: For further follow up on related General & Family Physician Click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr.Albana Sejdini

General & Family Physician

Practicing since :2006

Answered : 7309 Questions

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What Causes Dizziness After Eating?

Brief Answer: Possible oscillations in blood pressure/glucose levels as following... Detailed Answer: Hi, I understand your concerns. Having a feeling of dizziness, darkness around eyes, mild headache and feeling like passing out after eating is suggestive for possible: - low blood pressure (bp) - low blood glucose level (bgl) I usually advise my patients with the same problems as you to measure the bp and bgl when they have such episodes. In your case, you have eating garlic which is known to reduce bp and give the symptoms similar to yours. It has nothing to do with calories you take, but with what you take and how they affect your bp and bgl. Another possible option could be if you have eaten fast and large portions. This will cause compression of vagal nerve (which is also called vaso-vagal reaction). I advise to: - eat often and small portions, chew up slowly - avoid foods/spices that would cause low bp or bgl like garlic,etc. - increase water intake Hope it was of help! Dr.Albana