It improves blood glucose levels
iStock/londoneyeThere’s a reason (actually, many reasons) why spinach is called a diabetic superfood. Just one cup has 40 percent of your recommended daily serving of magnesium, which can help regulate blood sugars. The leafy greens the antioxidant alpha-lipoic acid, which lowers glucose levels and boosts insulin sensitivity. Its low glycemic index keeps you safe from unexpected blood sugar spikes. (Don't miss these other 15 best superfoods for diabetics.) Plus, non-diabetics can also reap the benefits of spinach. Researchers in England found that eating 1.15 servings (a little more than a cup) of spinach every day can reduce your risk of type 2 diabetes by 14 percent.
It reduces your cancer risk
iStock/CatLaneAdding more spinach to your diet is just one of many simple ways you can prevent cancer. Along with leafy veggies like kale, lettuce, and chard, spinach contains carotenoids, pigments found in plants that act as antioxidants to eliminate potentially dangerous free radicals. According to the American Institute of Cancer Research, foods with carotenoids can help prevent cancers of the mouth, pharynx, and larynx. They may even be able to slow the spread of breast cancer, lung cancer, stomach cancer, and skin cancer. Don't miss these other 37 ways to lower your risk of cancer.
It lowers blood pressure
iStock/PeopleImagesYou can keep a high blood pressure in check using natural remedies—like these 18 drug-free blood pressure treatments—and stocking up on foods that work into the DASH diet. Significant amounts of potassium, folate, and magnesium put spinach in this important category. (Find out the foods that lower high blood pressure.) In some cases, these lifestyle changes alone aren’t enough, and your doctor may put you on medication.
It boosts bone health
iStock/PeopleImagesSpinach is a bit complicated when it comes to bone health. It’s loaded with calcium, but it also contains oxalates that make it hard for the body to absorb that calcium. However, the National Osteoporosis Foundation says one of the benefits of spinach is that it's a valuable source of vitamin K, which is proven to increase bone density and can even prevent fractures. (These are the silent signs you have osteoporosis.) So here’s the compromise: Next time you make a spinach salad, include cheese or a non-dairy calcium source to get the benefits of both for your bones.
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It eases your constipation
iStock/vadimguzhvaFiber is the go-to nutrient for bathroom troubles. Since spinach has soluble and insoluble fiber, it helps ease you through any blockage. As an added bonus, the magnesium in spinach helps the colon contract so it draws in water to wash waste through your system. Here’s how you can add more fiber to your diet.
It puts iron in your diet
iStock/4kodiakJust one cup of cooked spinach contains more than 6 milligrams of iron. That may not seem like a lot, but the National Institute of Health suggests at least 19 milligrams per day for adult men and at least 17 milligrams for adult women. So that one cup covers about one-third of your daily recommended servings, which is especially good news for vegetarians. Try these yummy ways to sneak more spinach into your meals.
It keeps your nails and hair healthy
iStock/XsandraNewsflash: You don’t need to spend hundreds of dollars on products to get healthy hair. Spinach has high amounts of vitamins A and C, both of which act as natural beauty products. Vitamin A helps produce a substance called sebum that lubricates our skin and hair. In addition to absorbing all that previously mentioned iron, vitamin C keeps hair growing strong and long, with the help of the protein collagen. Vitamin C and collagen also make a great team for strengthening your nails and, as a result, preventing annoying hang nails. Learn the scary reason you might want to stick with organic spinach.
It has more potassium than a banana
iStock/FloortjeReally? Really. If you compare 100 grams of spinach to 100 grams of bananas, the spinach has significantly more potassium (200 mg more, to be exact). Potassium is known to improve bone health and maintain normal digestive and muscular functions. Plus, it can help lower the risk of osteoporosis and stroke. Check out these other foods that cut your risk of stroke.
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It helps your eyesight
iStock/kwasny221Another of the biggest benefits of spinach is it has one of the most important vitamins for your eyes: lutein. This antioxidant can reduce your risk of cataracts and age-related macular degeneration. Research shows that getting 10mg of lutein a day is a major health boost; one cup of cooked spinach has 20 mg. Who knew carrots weren’t the only food that improve your eyesight? Don't miss these other foods that reduce your risk of macular degeneration.
It promotes weight-loss
Stock-Asso/ShutterstockWith just 78 calories in an entire bunch of spinach, adding a few cups to your meal won't put a dent in your diet. But that's not the only way the benefits of spinach could help you shed pounds. Studies have shown taking spinach extract (a concentrated form of the plant's leaves) can keep you full and reduce cravings long after the meal is over, likely thanks to tiny compartments in spinach leaves called thylakoids. Add a handful of spinach to your eggs in the morning to beat cravings at lunch and beyond. Later in the day, use spinach greens with these other surprising salad tricks that help you lose weight.
It helps you recover from injuries
andriano.cz/ShutterstockSpinach is an insane source of vitamin K, with 181 percent of your daily needs in each serving. The vitamin helps your blood clot when you're injured, so getting your daily dose is important to recovery. There's increasing evidence that vitamin K could help your heart as a whole, too. A recent study of 766 adolescents found that the hearts of those who ate the least vitamin K1 were 3.3 times more likely to have an unhealthily large major pumping chamber. But find out why spinach might be bad for your health if you're on blood thinners.