Vitamins don't provide energy, instead they are coemzymes helping to activate key body functions and do other things such as protect against oxidative stress (like vitamin C)
4 calories :)
16 percent
1 gram of fat provides 9 calories of food energy
1 gram of fat is about 9 calories
4 grams
Foods contain fats, carbohydrates and proteins. These nutrients provide energy and this energy is measured in kilocalories. Vitamin A is also a nutrient but it is not a fat, carbohydrate or protein. It is not measured in kilocalories. So, the answer to your question is that vitamin A contains 0 grams of kilocalories.
The body uses calories to provide energy to the body. Some calories have nutritional value and others don't and are referred to as empty calories. The calories present in alcohol are empty calories and contain 7 calories per gram.
In 1 gram of what? 1 gram of carbohydrate is 4 calories. 1 gram of protein is 4 calories. 1 gram of fat is 9 calories and 1 gram of alcohol is 7 calories.
About four.
One gram of carbohydrates = 4 Calories One gram of Protein = 4 Calories One gram of Fat = 9 Calories
1 gram carbohydrate = 4 calories 5 gram carbohydrate = 20 calories
1 gram of protein = 4 calories.