What is a calorie? - Emma Bryce - Deepstash

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What is a calorie? - Emma Bryce

What is a calorie? - Emma Bryce

TED-Ed

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Understanding calories

Calories are a way of keeping track of the body's energy budget.

A healthy balance is when we put in a similar amount of energy as we burn. If we consistently put more energy into our bodies than we use, the excess will gradually be stored in our cells as fat. That is when ...

How to measure a calorie

One large calorie is defined as the amount of energy it would take to raise the temperature of one kilogram of water by one degree Celsius. 

Everything we consume has a calorie count - a measure of how much energy the item stores in its chemical bonds. For example, an apple...

Energy is released during digestion and stored in other molecules. It is then broken down to provide fuel to the body when needed.

Energy is used in three ways:

  • Roughly 10% enables digestion
  • About 20% fuels physical activity
  • Around 70% support the basic functions ...

BMR is the number of calories you would need to survive. 

The official guidelines for how many calories the average person requires each day are based on only the body's most basic functions.

The MBR for women are 2000 calories and for men 2500 calories.  It is based...

Before you start counting calories

  • The calorie counts on nutrition labels measure how much energy the food contains, not how much energy you can actually get out of it.
  • Fibrous foods like whole-wheat take more energy to digest, meaning you'll get less energy from eating a 100 calorie ...

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This is an excellent explanation of how a chronic excess of carbohydrates could lead to metabolic syndrome and diseases such as type II diabetes.

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