Why do leafy greens hurt my stomach

We all know how important it is to eat our five-a-day to maintain a healthy lifestyle. Not only do vegetables give us vast amounts of vitamins and nutrients, but they are a key component for a balanced diet, and low in fats and calories. Did you know though that eating vegetables in abundance may cause digestive issues? For those with sensitive bowels or with intolerances, eating more than your recommended daily amount may lead to bloating, constipation, and even bowel irritation.

We need to be mindful of what happens inside our bodies, how we are affected by certain foods, and what we can do to make sure our guts are healthy and happy.

 Vegetable bloating

If vegetables are low in fat and high in vitamins, why is it that they may cause digestive issues like bloating or constipation? While for some it may be due to an underlying intolerance, for most issues are mainly caused by the high levels of fibre that vegetables contain, a nightmare for those with sensitivities. Eating too much fibre can lead to the following symptoms:

  • Diarrhoea
  • Excess gas
  • Stomach pain
  • Cramps
  • Acid reflux

Soluble fibre is absorbed by bacteria, helping to maintain a balanced microbiome. Insoluble fibre cannot be absorbed by the body and can often cause constipation by adding bulk to the stool. Vegetables high in insoluble fiber include courgettes, broccoli, celery, leafy greens and root vegetables – these should be consumed in moderation.

Certain vegetables are also known as FODMAP foods. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides and polyols; foods high in FODMAP may be harder for your body to digest and absorb.

But which lead to vegetable bloating? Broccoli, onions, garlic, sprouts, and cauliflower are all high FODMAP foods and should be avoided by those that suffer frequently from poor gut health.

Vegetables that may not cause gas

Low-FODMAP vegetables (and so may not cause gas) include the following:

  • Bamboo Shoots
  • Bean Sprouts
  • Carrots
  • Corn (Baby, Canned)
  • Cucumber
  • Ginger Root
  • Iceberg Lettuce
  • Kale
  • Parsnips
  • Potatoes (White)
  • Radish
  • Rocket
  • Spaghetti Squash
  • Spinach

Why does my stomach hurt after eating vegetables

Sufferer of Irritable Bowel Syndrome (IBS)? It may be advisable to stay away from high-FODMAP foods and instead try for a low-FODMAP diet for relief from symptoms. Instead of eating meals high in vegetables, limit portions and swap particularly fibrous vegetables for those that are less irritating to your stomach.

How to avoid digestive issues caused by vegetables

Don’t eat foods you are intolerant to

Do you have a chickpea intolerance, an onion intolerance, a celery intolerance, intolerance to peppers, intolerance to garlic, or any other kind of vegetable intolerance? If you don’t know but suspect you might, we encourage you to take a food intolerance test to find out.

Food Allergy and Intolerance Testing are two totally different things. A true food allergy causes an immune system reaction that affects numerous organs in the body. A food allergy test can identify a range of food allergy symptoms and in some cases, an allergic food reaction can be severe or life-threatening. In contrast, food intolerance symptoms are generally less serious and often limited to digestive problems.

The Lorisian food intolerance test provides expert analysis of your unique IgG reactions to 208 food and drink ingredients. Working alongside trained Nutritional Therapists, Lorisian have developed comprehensive programmes to help people balance their diets, optimising their health and wellbeing.

Pair soluble fibre with insoluble fibre

Never eat insoluble fibre foods on an empty stomach. Always eat them with other foods that contain soluble fibre to limit irritation.

Get rid of roughage

Remove any stems or peels, skins or leaves from vegetables that are high in insoluble fibre.

Cook well

If you can’t imagine having to give up broccoli, onion, or garlic, ensuring they’re well-cooked might provide your answer. Dicing, stewing, or any other form of cooking helps the tough nature of the fibre to be softened a little, making it more gentle on your gastrointestinal system as it’s already partly broken down for you. Roast, mash, steam, boil or sauté away!

Eat seasonally

Back in the days of cavemen, we would eat seasonally what was available. Studies show that eating in this way can be better for our stomachs and be more nutritious.

Eat fermented

Fermented vegetables are easier to absorb, and contain probiotics which are great for your gut.

Want some support getting to grips with your digestive problems, get in touch with me now

Medically Reviewed by Christine Mikstas, RD, LD on August 30, 2021

Why do leafy greens hurt my stomach

They're high in fat and can bring on diarrhea. Rich sauces, fatty cuts of meat, and buttery or creamy desserts can cause problems, too.

Choose roasted or baked foods and light sauces that feature vegetables instead of butter or cream.

Why do leafy greens hurt my stomach

Because they're high in fiber and they are acidic, they can give some folks an upset stomach. Go easy on oranges, grapefruit, and other citrus fruits if your belly doesn't feel right.

Why do leafy greens hurt my stomach

Chew too much sugar-free gum made with sorbitol and you might get cramps and diarrhea. Food made with this artificial sweetener can cause the same problems.

The FDA warns that you might get diarrhea if you eat 50 or more grams a day of sorbitol, though even much lower amounts reportedly cause trouble for some people.

Why do leafy greens hurt my stomach

Foods high in this healthy carb, like whole grains and vegetables, are good for digestion. But if you start eating lots of them, your digestive system may have trouble adjusting. The result: gas and bloating. So step up the amount of fiber you eat gradually.

Why do leafy greens hurt my stomach

They're loaded with healthy protein and fiber, but they also have hard-to-digest sugars that cause gas and cramping. Your body doesn't have enzymes that can break them down. Bacteria in your gut do the work instead, giving off gas in the process.

Try this tip to get rid of some of the troublesome sugars: Soak dried beans for at least 4 hours and pour off the water before cooking.

Why do leafy greens hurt my stomach

Cruciferous vegetables, like broccoli and cabbage, have the same sugars that make beans gassy. Their high fiber can also make them hard to digest. It will be easier on your stomach if you cook them instead of eating raw.

Why do leafy greens hurt my stomach

Foods sweetened with this -- including sodas, candy, fruit juice, and pastries -- are hard for some people to digest. That can lead to diarrhea, bloating, and cramps.

Why do leafy greens hurt my stomach

Some people get indigestion or heartburn after eating them, especially when it's a large meal.

Studies suggest the hot ingredient in chili peppers, called capsaicin, may be a culprit.

Why do leafy greens hurt my stomach

If they trigger diarrhea, bloating, and gas, you may be "lactose intolerant." It means you don't have an enzyme that digests a sugar in milk and other forms of dairy. 

Avoid those foods or try an over-the-counter drop or pill that has the missing enzyme.

Why do leafy greens hurt my stomach

It can relax the muscle at the top of the stomach, which lets food move back into your esophagus. That can cause heartburn. Other culprits include chocolate or coffee.

Experts say you can lower the pressure that pushes the food back up if you lose extra weight, eat smaller portions, and don't lie down after eating.

Also, learn what foods give you problems, so you can avoid them.

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REFERENCES:

American College of Gastroenterology American Geriatric Society Foundation for Health in Aging

Choi, Y. Journal of Clinical Gastroenterology, March 2008.


Fernandez-Banares, F. Current Gastroenterology Reports, October 2009.
Grabitske, H.A. Critical Reviews in Food Science and Nutrition, 2009. Harvard Health Publications Joanne Slavin, PhD, department of food science and nutrition, University of Minnesota. Joel Richter, MD, professor of gastroenterology, Temple University School of Medicine, Philadelphia.

King, C. Morbidity and Mortality Weekly Report, Nov. 21, 2003.

National Institute of Diabetes and Digestive and Kidney Diseases

Rodriguez-Stanley, S. Alimentary Pharmacology & Therapeutics, January 2000.

Science Daily

Suarez, F.L. Current Gastroenterology Reports, October 2000.