Complex Carbohydrates & Simple Carbohydrates Explained

Carbohydrates are simply a name given to describe food that is either sugary (e.g. honey) or starchy (e.g. potatoes). There are two main types of carbohydrate, simple and complex.

What Are Simple Carbohydrates?

Simple carbohydrates such as sugar and flour, are digested by the body very quickly. This means that when you eat simple carbohydrates, you will get a short and rapid boost of energy.

simple carbohydrates

It’s like lighting a firework, once you light it, you get a lot of immediate energy but it only lasts a short time.

So, Simple Carbohydrates are…

  • Usually the foods you love!
  • Simple, so the body can use them quickly
  • Usually taste sweet like sugar
  • Provide a quick boost of energy
  • Energy boost doesn’t last long

What Are Complex Carbohydrates?

Complex carbohydrates are found mainly in vegetables, grains and rice. When you eat complex carbohydrates the body takes longer to digest them, resulting in a gradual release of energy over a longer period of time.

complex carbohydrates

So, Complex Carbohydrates are…

  • Usually the foods you hate!
  • They are complex, so the body takes longer to break them down
  • Mainly found in vegetables and rice
  • Provide gradual release of energy
  • Energy supplied for a long period of time

What Happens When You Eat Carbohydrates?

Every time you eat carbohydrates the body breaks them down into a form of sugar called glucose. Glucose is then burned and used as a source of energy.

So when you eat carbohydrates it is like throwing wood on a fire. The fire burns the wood and uses to it stay alive.

burning carbohydrates

However there is only so much glucose the body needs or can use at any one time, so the unused glucose is converted to glycogen and stored as a reserve supply of energy. It’s like keeping a few extra logs by the fireplace, so you can use them when the fire is dying down.

These glycogen reserves can only store a limited amount of energy, so when they are full, glucose is then stored as fat. As you probably already know, the body can store a lot of fat!

Glucose And Insulin                                            

What helps the body to use glucose is a hormone called insulin, which is secreted by your pancreas.

glucose insulin

Insulin is a very important hormone, because high levels of glucose are dangerous and can damage the body. This means insulin must be secreted after every meal, to make sure the food you eat doesn’t kill you!

The trouble with insulin is that every time it is released into the body, your cells become more and more resistant to it.

This means that over time the pancreas will have to release more insulin than it used too, in order for the body to use glucose and keep it at safe levels.

In the medical world this is known as insulin resistance. It is unavoidable and happens to everyone.

insulin resistance

Insulin Resistance

Whilst you cannot prevent insulin resistance, you can control how quickly it develops. This is because different foods vary in the amount of insulin they cause the pancreas to release after they are eaten.

“High Carb Foods”

High carb foods are carbohydrates that have a “high glycemic index”. This means that when you eat them, they cause a large and rapid release of insulin in the body.

high carb food

The significance of this is that the more insulin your cells are exposed to, the more rapidly they will develop insulin resistance. One of the most obvious signs of insulin resistance is rapid weight gain.

Weight Gain & Insulin Resistance

Although there are many other signs of insulin resistance, a high level of resistance can be seen in males and females in 2 places:

If you’re a male the first signs of high insulin resistance begin in the belly.  If you can’t see your toes there’s a good chance your cells have developed a very high level of insulin resistance, which is now causing you to have a fat stomach.

insuline resistance male

If you’re a female, have a look at your bum! High insulin resistance in females often appears as fat accumulation in the buttocks first and then fat around the waist.

insulin resistance female

Why Does Fat Indicate Insulin Resistance?

The reason we look at body fat to indicate the level of resistance, is because insulin has the ability to prevent the body from using stored fat as a source of energy.

This means that if you are eating “high carb foods” throughout the day that have a high glycemic index, your insulin levels will be high and your body will continue to store fat, rather than burn fat.

fat insulin resistance

So if you are trying to lose weight, then it is best to avoid eating sugary foods. If you can go on a low carb diet for at least one month, then you should notice significant weight loss because the fat will literally melt off you.

This is why models tend to eat low carb diets before picture shoots, because it allows them to lose weight quickly and look their best.



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6 Responses to “What Are Carbohydrates? And How Do They Affect Your Body?”

  1. deven malhotra Says:

    so if i have a small amount of belly fat, my belly is going down. does this mean i should not eat any carbs?

  2. Martin Says:

    If you have a small amount of belly fat i would look at it as an early warning sign, so examine the foods you are eating and eliminate or reduce high carb sugary foods.

    There is no need to completely eliminate carbs from your diet, but if you are starting to build up belly fat this will only increase as you age. Tackle it whilst you are still young, it will be much harder to get rid of when you are older!

    If you are not exercising adding some daily exercise would also be benefical. An ideal programme to follow is anaerobic exercise (using weights) 2-3 times per week, and aerobic exercise such as running or using an exercise bike in the days between. This is an excellent combination for fat burning.

    For more information see the book “burn the fat, feed the muscle” in the free ebook section on this site.

  3. Wes Says:

    very informative post. Not many times do you read a blog post and actually learn something.

    The best time to eat starchy foods (simple or complex carbs) that I’ve found is before you exercise. Eat those starchy foods all you want, but make sure you only eat prior to some physical activity. This will make sure you are burning them and storing them as fat.

    Ok, maybe just eat them in moderation.

  4. Just Me Says:

    This is a great srticle. Easy to understand and feel like you’ve actually learned something. Excellent. Thanks for clearing this issue for me…

  5. Rose Says:

    im just diagnost with diabetes is hard for me im 16 yeas old, i dnt want to died in diabetes i always watch what im eating how many carbs i want every body to do the same thing as me.

  6. jal Says:

    thank you for the information. God Bless!

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