0 kcal 🥦 Vegetables and Vegetable Products
Calories in Corn, sweet, yellow and white kernels, fresh
Sweet corn's sugar starts converting to starch the very second it's picked, making freshness a literal matter of taste.
85 kcal
What makes corn so powerful?
Sweet corn's defining characteristic—its sweetness—comes from a recessive mutation in the Sugary1 (Su1) gene, which prevents the rapid conversion of sucrose into starch. Unlike field corn, which accumulates dense starches for long-term storage, sweet corn traps higher levels of water-soluble sugars in its endosperm. However, this sugar begins converting to starch the exact moment the ear is detached from the stalk. At room temperature, a freshly picked ear of sweet corn can lose up to half of its sugar content within a single day as enzymes break down the sucrose. This rapid degradation is why older agricultural generations recommended putting a pot of water on to boil before heading out to the cornfield to harvest. The yellow and white bicolor varieties, often called "butter and sugar" corn, simply combine the genetic traits of traditional yellow sweet corn with white sweet corn. This crossbreeding offers a milder, creamier flavor profile without altering the underlying carbohydrate mechanics that make fresh corn a highly perishable, time-sensitive crop.
Gene Mutation Sweetness
A recessive gene mutation prevents sweet corn from turning its sugars into dense starches like field corn.
Rapid Sugar Loss
Sweet corn can lose up to half of its sugar content within 24 hours of being picked.
Bicolor Genetic Blend
Yellow and white kernels are the result of cross-pollinating yellow and white corn varieties for a milder flavor.
💡 When & how to use it
To preserve its rapidly degrading sugars, keep fresh sweet corn refrigerated in the husk and consume within two days. Boiling briefly in unsalted water (salt can toughen the kernels) or microwaving in the husk helps retain moisture and nutrients. Pairing corn with a source of healthy fats, like olive oil or almonds, enhances the absorption of fat-soluble vitamins such as vitamin A, while a squeeze of lime helps unlock niacin and folate for better absorption.
Calories by Serving Size
100g
85 kcal
P 2.79g C 14.7g F 1.63g
1 RACC (85g)
72 kcal
P 2.4g C 12.5g F 1.4g
200g
170 kcal
P 5.6g C 29.4g F 3.3g
50g
43 kcal
P 1.4g C 7.4g F 0.8g
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
Nutrition Facts
Serving size: 100g
Calories 85
% Daily Value*
Total Fat 1.63g 2%
Sodium 0mg 0%
Total Carbohydrate 14.7g 5%
Dietary Fiber 2.43g 9%
Protein 2.79g 6%
Calcium 0.66mg 0%
Iron 0.39mg 2%
Potassium 237mg 5%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
How does Corn fit your daily goals?
17 min
Walking to burn 85 kcal
4%
of 2,000 kcal daily goal
2.79g
protein (6% of daily 50g)
24
servings until 2,000 kcal
Log Corn in CalRay — just snap a photo
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Frequently Asked Questions
How many calories are in Corn, sweet, yellow and white kernels, fresh?
Corn, sweet, yellow and white kernels, fresh contains 85 calories per 100g. A standard serving of 1 RACC (85g) provides 72 calories. It is a moderate-calorie food that can fit into most healthy diets.
How much protein does Corn, sweet, yellow and white kernels, fresh have?
Corn, sweet, yellow and white kernels, fresh provides 2.79g of protein per 100g, which is 6% of the 50g daily recommended value. It is not a primary protein source.
How many carbs are in Corn, sweet, yellow and white kernels, fresh?
Corn, sweet, yellow and white kernels, fresh contains 14.7g of carbohydrates per 100g . It also provides 2.43g of dietary fiber.
Is Corn, sweet, yellow and white kernels, fresh good for weight loss?
Corn, sweet, yellow and white kernels, fresh has 85 kcal per 100g, which is relatively moderate. It can fit into a weight-loss diet as long as portion sizes are managed.
How do I track Corn, sweet, yellow and white kernels, fresh calories accurately?
The easiest way to track corn is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.
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