Corn on the cob is a popular summer food, but is it keto-friendly? Corn is a grain, not a vegetable, and it's a complex carb with a high starch content. One ear of corn on the cob contains around 80-88 calories and 14-31.9 grams of carbohydrates. For those on a keto diet, corn is generally not considered keto-friendly due to its high carb content. However, some keto dieters may be able to consume a small amount of corn and stay in ketosis. Popcorn is a keto-friendly exception, as it has a lower carb count, especially if it is air-popped without added flavourings.
Characteristics | Values |
---|---|
Calories | 88-99 calories per ear |
Carbohydrates | 14-22g per ear |
Fat | 1.4-3.4g per ear |
Protein | 3.3-4.5g per ear |
Vitamins | C, E, A, and B vitamins (thiamin) |
Minerals | Potassium, iron, zinc, magnesium, phosphorus, selenium |
What You'll Learn
Corn is a grain, not a vegetable
Corn is often thought of as a vegetable, especially when it's served as corn on the cob, or as canned or frozen corn kernels. However, despite its widespread consumption as a vegetable, corn is technically a grain.
From a culinary perspective, corn is a vegetable. It is typically served as a savoury side dish, and is commonly boiled, grilled, or steamed. However, corn is also a staple grain in many parts of the world, and is used to make products such as tortillas, cornbread, and cornmeal. In its mature state, corn is harvested and classified as a grain. This is when it is typically milled into cornmeal, or used as popcorn.
The confusion around whether corn is a grain or a vegetable may be due to the different ways in which corn is classified in different contexts. From a botanical perspective, corn is a fruit, as it is produced from the flower or ovary of the corn plant. However, according to the USDA, corn can be considered either a vegetable or a grain, depending on the variety of corn and the time of harvest. When corn is harvested at a young or immature state, it is considered a starchy vegetable. However, as the kernels mature, they become hard and dry, and are then classified as a grain.
Corn is also a popular choice for those following a keto diet. Corn on the cob contains approximately 88 calories per ear, with 19 grams of carbohydrates, 1.4 grams of fat, and 3.3 grams of protein. While corn is a good source of vitamins and minerals, it is important to note that it is higher in calories and carbohydrates than other vegetables, and may not count towards your recommended daily intake of vegetables.
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Corn is not keto-friendly
Corn is a whole grain, not a vegetable, and it is not keto-friendly. Corn is a complex carb and a starchy grain containing more digestible carbohydrates than fibre. One cup (165 grams) of canned, cooked corn yields 24 grams of net carbs and only 3 grams of fibre. For comparison, one medium sweet potato provides 27 grams of carbs. Corn is generally too high in carbs, and most keto dieters avoid it.
While some keto dieters might be able to consume a small amount of corn and remain in ketosis, corn is not a good choice for the ketogenic diet. Corn is a staple in cuisines worldwide, and in the United States, corn on the cob is a summertime favourite. Corn is a nutritious option to add to any meal, offering vitamins, minerals, and antioxidants. It is also a good source of thiamin, vitamins C, E, and A, and potassium. However, its high carbohydrate content makes it unsuitable for a keto diet.
One ear of corn on the cob contains approximately 88 calories and provides 1.4 grams of fat, 19 grams of carbohydrates, and 3.3 grams of protein. The calories of boiled or grilled corn will not differ unless you introduce another food item in preparation, such as salt, butter, oil, or other toppings. Some of the vitamins and minerals could be lost during the cooking process when boiling corn.
When it comes to the 19 grams of carbohydrates found in corn, fibre only makes up about 2 grams, and natural sugars make up around 6.4 grams. As a result, corn is considered moderate on the glycemic index (GI) scale, with a rating that falls between 56 and 69. Note that consuming corn with butter, fibre, or protein-containing foods will substantially affect the overall GI rating.
If you are looking for a keto-friendly snack, popcorn is a good option. Popcorn is a whole-grain snack that is minimally processed, especially when made fresh. A 1-cup serving of popcorn has only 6.5 grams of net carbs. However, be aware that flavourings may add carbs, and sweetened types of popcorn, such as caramel-covered popcorn, should be avoided.
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Corn is a good source of vitamins and minerals
Corn is a healthy grain and a good source of fiber, vitamins, minerals, and antioxidants. It is also known as maize and is one of the world's most popular cereal grains. It is the seed of a plant in the grass family, native to Central America but grown in countless varieties worldwide. Popcorn and sweet corn are popular varieties, but refined corn products like tortillas, tortilla chips, polenta, cornmeal, corn syrup, and corn oil are also widely consumed.
Corn is a good source of many essential vitamins and minerals. Notably, the amount varies depending on the type of corn. In general, popcorn is rich in minerals, while sweet corn is higher in vitamins. Corn provides several vitamins and minerals, including:
- Manganese: An essential trace element found in high amounts in whole grains, legumes, fruits, and vegetables.
- Phosphorus: Plays an important role in the growth and maintenance of body tissues.
- Magnesium: Poor levels of this mineral may increase the risk of chronic illnesses such as heart disease.
- Zinc: A trace element with many essential functions in the body.
- Copper: An antioxidant trace element that is generally low in the Western diet. Inadequate intake may adversely affect heart health.
- Pantothenic acid (vitamin B5): Found to some extent in nearly all foods, so deficiency is rare.
- Folate (vitamin B9): An essential nutrient, especially during pregnancy.
- Vitamin B6: Serves various functions in the body.
- Niacin (vitamin B3): Cooking corn with lime can make this nutrient more available for absorption.
- Potassium: An essential nutrient for blood pressure control and may improve heart health.
Corn also contains other vitamins and minerals in varying amounts, including thiamin, vitamin C, vitamin E, vitamin A, iron, selenium, and zinc.
In addition to its vitamin and mineral content, corn offers several health benefits. It is a good source of antioxidants, including lutein and zeaxanthin, which are linked to improved eye health. Corn also contains insoluble fiber, which can aid digestion and support regular bowel movements. The soluble fiber in corn can help lower cholesterol levels and reduce the risk of heart disease.
Furthermore, corn is a low-fat, low-calorie food that can aid in weight loss by providing a feeling of fullness without excess calories. It is also a good source of complex carbohydrates, which provide sustained energy levels throughout the day.
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Corn is a complex carb
Technically, corn is a grain, but nutritionally, it's more akin to a starchy vegetable. The USDA considers corn on the cob and corn kernels to be vegetables, but products made from corn, like popcorn and corn tortillas, are classed as grains.
Corn is a smart carb because it's low in calories and fat, and it has a low glycemic index, meaning it won't cause a spike in blood sugar levels. It also contains phytonutrients, fiber, and protein. A medium ear of corn (about 1/2 cup of kernels) has fewer than 100 calories and is virtually fat-free, with only 1 gram of fat. It's also a good source of fiber, with 2 grams.
Corn is a good source of carbohydrates, with 19 grams of carbs per ear, of which 2 grams are fiber and 6.4 grams are natural sugars. It also contains essential vitamins and minerals, including vitamins C, E, and A, as well as potassium, iron, zinc, magnesium, phosphorus, and selenium.
When it comes to keto, corn on the cob may not be the best option due to its carb content. However, in moderation, it can be enjoyed as part of a balanced diet.
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Corn is a staple food around the world
Corn, or maize, is a staple food for many people around the world. It is a whole grain that is inexpensive and readily available, making it a popular food source. Corn is a good source of carbohydrates and protein and contains vitamins C, E, and A, as well as some fibre and potassium. It is also low in fat, with most of the fat in corn coming from heart-healthy monounsaturated or polyunsaturated fats.
Corn was first domesticated in Mexico around 10,000 years ago and has been a staple food there ever since. It is the main ingredient in maize tortillas and is used in countless other Mexican dishes. Through international trade, corn has spread worldwide and is now a major food source in Africa, Europe, and the US. It is estimated that corn makes up 19.5% of the world's caloric intake, with nearly half of the human population relying on it as a staple food.
Corn can be boiled and eaten whole, dried and ground into flour, or cooked in sweetened milk for dessert. It is also used in sweeteners, such as corn syrup, and in the production of alcohol and cooking oil.
One ear of corn on the cob contains approximately 80-88 calories, depending on its size. It provides 1.4g of fat, 19g of carbohydrates, and 3.3g of protein. The glycemic index (GI) rating of corn is moderate, falling between 56 and 69. This rating can be affected by consuming corn with butter, fibre, or protein-containing foods.
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Frequently asked questions
No, contrary to popular belief, corn is a grain.
Corn is not keto-friendly. It is a complex carb and a starchy grain containing more digestible carbs than fiber.
A medium-sized ear of corn (6 3/4" to 7 1/2" long) contains 19 grams of total carbohydrates. However, this can vary depending on the size and type of corn.
In addition to carbohydrates, corn on the cob provides protein, fiber, vitamins C, E, and A, and minerals like potassium, iron, zinc, magnesium, and selenium.
A medium-sized ear of corn contains approximately 80-90 calories.