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Is Corn Good for Weight Loss?

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Key Takeaways

  • Corn may be helpful for weight management, as it is high in fiber, providing bulk that is not only good for gut health but also increases your feeling of fullness.
  • It is best to minimize your intake of highly processed forms of corn, like high fructose corn syrup, which has lost all of its nutritional value.
  • Enjoy corn on the cob, popcorn, and whole cornmeal in recipes to reap their nutritional benefits.

Corn is a well-liked starchy vegetable and a staple in many cultures’ cuisines, but you may wonder if corn is good for weight management.

Corn can be a beneficial addition to your diet when minimally processed because of its fiber, vitamin, mineral, and antioxidant content. 

However, foods containing processed forms of corn, like high fructose corn syrup, are counterproductive for weight management.

When corn is turned into a highly processed ingredient, it loses fiber, vitamins, and minerals, making it far less nutritious than in its whole form. 

Learn more about corn's nutritional and health benefits and why corn can be good for weight management below. 

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Is Corn Good for Weight Management?

When minimally processed, corn can be a healthful addition to your diet. Corn is low in calories and fat and rich in fiber, which helps keep you full longer. It also contains beneficial nutrients like vitamin C, potassium, and vitamin A. 

Corn is technically a whole grain, though it’s often grouped with starchy vegetables like potatoes.

A starchy veggie contains more carbohydrates than other non-starchy vegetables, such as cucumbers, leafy greens, broccoli, and tomatoes.

The higher content of carbohydrates is often seen as counterproductive in weight management. However, all foods can be part of a healthy, balanced plan. 

While it’s important to eat plenty of non-starchy vegetables for their nutritional quality, starchy vegetables can serve as a source of high-fiber carbohydrates when eaten in moderation. 

Nutritional Value of Corn 

Corn is primarily carbohydrates, with small amounts of protein and fat. Corn also contains essential micronutrients, including B vitamins, vitamin C, potassium, and vitamin A.

One medium ear of yellow corn contains:

  • 88 calories.
  • 3.3 grams of protein.
  • 1.4 grams of fat. 
  • 19 grams of carbohydrates. 
  • 2 grams of fiber. 
  • 6.4 grams of sugar. 

Corn is a good source of potassium, an important mineral that many American diets lack.

Potassium helps act as a diuretic, which can help lower high blood pressure levels when consumed from dietary sources. 

Phytochemicals

Corn is rich in phytochemicals (beneficial plant compounds), which have been linked with health benefits because of their antioxidant properties.

Research shows that people who eat more foods high in phytochemicals have a lower risk of developing chronic diseases like heart disease, type 2 diabetes, and some forms of cancer. 

Carotenoids are a type of phytochemical found in corn and other red, orange, and yellow produce.

Beta-carotene is a carotenoid that may reduce cancer risk, while lutein and zeaxanthin are important for eye health, protecting against macular degeneration.

Yellow corn is highest in carotenoids compared to varieties with less pigment, like white corn. 

Corn also contains phytosterols, a plant compound that helps lower elevated cholesterol levels by binding to cholesterol in the digestive tract and preventing absorption into the bloodstream. 

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Benefits of Corn

Corn contains a type of carbohydrate called resistant starch, which is “resistant” to digestion in the small intestine, and is instead broken down in the large intestine.

This process yields many health benefits, including boosting healthy gut bacteria, reducing cholesterol levels, and assisting in weight management. 

Resistant starch also serves as a fiber source, which slows down digestion and helps you feel full longer.

This can aid in weight management efforts because an increased feeling of fullness may help minimize mindless eating and additional snacking. 

Studies have also linked resistant starch intake to reduced insulin resistance, a key factor in diabetes prevention.

In addition, resistant starch may positively impact gut hormones related to metabolism. 

The fiber in corn and other whole grains has been shown to help in weight management efforts and other chronic diseases like type 2 diabetes.

Including fiber-rich carbohydrates can help keep your blood sugar and energy levels stable throughout the day.

Drawbacks

Corn is available in many processed forms, which may be counterproductive to your weight management efforts if you eat them regularly.

Diets high in ultra-processed foods, made with ingredients like high-fructose corn syrup, are linked to adverse health effects.  

Foods like soda, candy, and fast food contain high fructose corn syrup.

These items are highly palatable and can override your natural fullness cues. 

Corn oil is another processed form of corn. It is primarily made up of unsaturated fats, which can benefit heart health. It’s also a good source of vitamin E, a potent antioxidant.

Despite its potential health benefits, corn oil, like any oil, can interfere with weight management efforts when used liberally. 

Corn-based breakfast cereals are also commonly available. It’s best to look for brands with minimal added sugars and saturated fat. 

How Much Corn is Too Much?

Though corn is a nutrient-dense food, eating too much of it can interfere with weight management efforts due to its carbohydrate and calorie content.

It’s important to be mindful of your portions when eating corn and corn products. 

The following represents one serving of various corn products:

  • ½ cup of corn kernels (one small cob). 
  • 1 small corn tortilla (6 inches across).
  • 3 cups of popcorn. 
  • 1 cup of corn flakes (breakfast cereal).

Everyone has different nutritional needs. Consider talking to a registered dietitian through Nourish for personalized information on the best portion sizes to help you meet your health and weight management goals. 

Best Ways to Eat Corn For Weight Management

Unprocessed

The best way to eat corn is in its whole form, like corn on the cob. Be mindful of toppings like butter, which can add unwanted saturated fat to your dish.

Regarding the type of corn, white corn, and yellow corn have similar flavors and nutritional profiles. 

You can try roasted or grilled corn for extra flavor, but simple boiled corn can be a versatile addition to many dishes, like soups, chili, salads, and more. 

Popcorn is another fantastic way to eat corn for weight management, but be wary of flavored popcorn products, as these are often high in added salt, fat, or sugar.

The healthiest way to eat popcorn is to air-pop it at home and use light toppings like olive oil spray and garlic powder. 

Processed

There are some processed forms of corn that can be a healthful source of whole grains.

These include whole cornmeal (not degermed), corn tortillas, plain grits, and cornflakes without added sugar.

Be mindful of more processed forms of these foods, like tortilla chips and sugary breakfast cereals, as they do not provide the same nutritional value. 

Takeaway

Corn can be a healthful addition to many meal plans when eaten in its whole form without high-saturated fat toppings like butter.

Corn's fiber and resistant starch content increase satiety by slowing digestion and may also reduce the risk of developing chronic diseases. 

Corn is low in calories and fat and contains vitamins, minerals, and phytochemicals that have numerous health benefits, like improving insulin resistance and supporting eye health. 

If you considering including corn as part of your weight management meal plan, be mindful of portion sizes, and eat minimally processed corn, like corn on the cob or air-popped popcorn, to reap its nutritional benefits without interfering with your weight management efforts. 

Weight Management with a Dietitian

It can be challenging to know which foods to include in your diet in your weight management efforts.

A weight loss nutritionist can help you develop a realistic diet plan considering your preferences and medical history. 

Many weight loss diets feel restrictive and unsustainable. At Nourish, your registered dietitian will help you build healthy, long-lasting habits while emphasizing balance and mindfulness in your food choices. 

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