Why do I get dizzy when I'm hungry?

Blood sugar comes from digesting carbohydrates (carbs), and it's the primary source of energy for the brain. Thus, skipping meals or avoiding carbs can cause your blood sugar levels to drop, which may result in a sudden bout of dizziness ( 2 , 3 , 4 ).

healthline.com - Can Not Eating Make You Dizzy? A Dietitian Explains - Healthline

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Feeling dizzy is a sensation most of us have experienced at some point in time. Though you probably know the feeling, it’s not always easy to pinpoint the exact cause. In fact, there are many things that can cause dizziness. Not eating enough may be one cause of dizziness, but it’s not always the case. In this article, we’ll cover why not eating can make you feel dizzy, what other issues can cause dizziness, and some steps you can take when you’re feeling that way. Share on Pinterest Anna Malgina/Stocksy United Why skipping meals may cause dizziness Hypoglycemia occurs when the amount of glucose — often referred to simply as “sugar” — in your blood drops below a value of 70 mg/dL ( 1 ). This state is more commonly called “low blood sugar,” and it’s something you may experience regularly if you’re living with diabetes and having trouble managing your blood sugar levels. You can also experience low blood sugar suddenly due to factors like ( 1 ): extreme weather

consuming alcohol

changes in altitude

skipping meals or undereating in general

not eating balanced meals that provide enough nutrients Blood sugar comes from digesting carbohydrates (carbs), and it’s the primary source of energy for the brain. Thus, skipping meals or avoiding carbs can cause your blood sugar levels to drop, which may result in a sudden bout of dizziness ( 2 , 3 , 4 ). If you’re feeling dizzy after skipping a meal and wondering if your blood sugar has dropped, some other warning signs you might experience include hunger, confusion, sweating, and shaking ( 1 , 5 , 6 , 7 ). This combination of symptoms is likely a sign that you need to eat something. SUMMARY The food we eat provides energy to fuel our bodies throughout the day in the form of blood sugar. Carbs in particular are needed to energize the brain. When the body experiences a shortage of fuel, your blood sugar may drop, causing you to feel dizzy. Heads up Skipping meals or reducing food intake to the point of experiencing symptoms like dizziness may indicate a disordered relationship with food or an eating disorder. If you are preoccupied with food or your weight, feel guilt surrounding your food choices, or routinely engage in restrictive diets, consider reaching out for support. Disordered eating and eating disorders can affect anyone, regardless of gender identity, race, age, body size, socioeconomic status, or other identities. They can be caused by any combination of biological, social, cultural, and environmental factors — not just by exposure to diet culture. Feel empowered to talk with a qualified healthcare professional, such as a registered dietitian, if you’re struggling. You can also chat, call, or text anonymously with trained volunteers at the National Eating Disorders Association helpline for free or explore the organization’s free and low cost resources. What to do if you’re feeling dizzy If you’re feeling dizzy, one of the first things you should do is sit or lie down. Do not attempt to drive or operate any type of equipment. Dizziness causes a loss of balance, which can easily lead to falls and injuries — especially in older adults. Therefore, it’s best to avoid standing or walking until the feeling passes ( 22 ). If you’re suspicious that your dizziness may have been caused by not eating enough or going too long without eating, try to eat or drink something with calories as soon as possible. The human body breaks down and absorb carbs for energy quicker than any other nutrients, so if you can find a good source of simple carbs — like fruit juice, bread, a cup of milk, or a bit of honey — eating one of these will help restore your blood sugar levels quickly. In a pinch, even a piece of candy or something else sweet might do the trick, but keep in mind that relying on sweet treats to maintain blood sugar levels and stave off dizziness is not a healthy long-term option. Once the initial bout of dizziness has passed, try having another snack that pairs a fiber-rich complex carb with a lean protein. The combination of nutrients should help to keep your blood sugar levels from falling suddenly. Some examples of snack combinations that pair complex carbs with lean proteins are: yogurt with fruit

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whole-grain crackers with cheese

peanut butter toast

cut veggies with hummus Need help accessing food? Assistance is available, wherever you are If you need immediate assistance accessing food, you can call the USDA’s National Hunger Hotline at 1-866-3-HUNGRY (1-866-348-6479) or 1-877-8-HAMBRE (1-877-842-6273), Mondays through Fridays from 7:00 a.m. to 10:00 p.m. EST. You can also text the Hunger Free America hotline (914-342-7744) for help navigating food assistance options near you. There may be other resources within your community, such as: local food banks

local food pantries or FoodFinder

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Meals on Wheels (serving those with limited mobility)

Supplemental Nutrition Assistance Program (SNAP)

Women, Infants, and Children (WIC) There is no shame in reaching out for the support you need. You should always feel empowered to connect with the resources available to you. Treating other causes of dizziness If you think that something besides undereating is making you dizzy, be sure to speak with a medical professional like a doctor to pinpoint the exact cause. Seek help immediately if you begin to experience other notable symptoms like numbness, chest pains, any sudden changes in vision, or a fever. In the meantime, you can try to alleviate the feeling by: drinking water

lying down in a cool, dark, quiet place

avoiding alcohol, caffeine, and tobacco SUMMARY If you suspect that not eating has caused you to feel dizzy, find a quick source of carbs to help restore your blood sugar levels. You may need to sit down in a cool, quiet place until the feeling subsides. Stick with drinking water and avoid stimulants.

healthline.com - Can Not Eating Make You Dizzy? A Dietitian Explains - Healthline

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