What Happens to Your Body When You Eat Too Much Sugar?

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Story at-a-glance

  • Today, an average American consumes about 22 teaspoons of sugar per day, which amounts to 77 pounds of sugar per year
  • The human body is not made to consume excessive amounts of sugar, especially fructose. It is actually a hepatotoxin and is metabolized directly into fat – factors that can cause a whole host of problems that can have far-reaching effects on your health
  • One study found that fructose is readily used by cancer cells to increase their proliferation – it “feeds” the cancer cells, promoting cell division and speeding their growth, which allows the cancer to spread faster
  • As a general recommendation, keep your total fructose consumption below 25 grams per day, including that from whole fruit

By Dr. Mercola

You add it to your morning cup of coffee or tea. You bake it into pastries, cakes, and cookies. You even sprinkle it all over your breakfast cereal or your oatmeal for added "flavor."

But that's not all. It's also hidden in some beloved "treats" that people consume on a daily basis, such as sodas, fruit juices, candies, and ice cream. It also lurks in almost all processed foods, including breads, meats, and even your favorite condiments like Worcestershire sauce and ketchup.

It's none other than sugar. Most people view sugary foods as tasty, satisfying, and irresistible treats. But I believe that there are three words that can more accurately describe sugar: toxic, addicting, and deadly.

Sugar, in my opinion, is one of the most damaging substances that you can ingest – and what's terrifying about it is that it's just so abundant in our everyday diet.  This intense addiction to sugar is becoming rampant, not just among adults, but in children as well.

But how exactly does sugar work in our body, and what are the side effects of eating too much sugar on people's health? 

Why Is Excessive Sugar Bad for Your Health?

Today, an average American consumes about 32 teaspoons of sugar per day. New numbers came out in February 2015. The Washington Post did a story on it using grams (4 grams = 1 tsp). They quoted Euromonitor's study, which said Americans are now consuming 126 grams, which would equal close to 32 teaspoons.

Euromonitor's study costs $1200 to access; the Washington Post interprets the study for free here. It's definitely alarming, considering the average Englishman during the 1700s only consumed four pounds of sugar per year1 – and that's most likely from healthful natural sources like fruits, and not from the processed foods you see in supermarket shelves today.

What's even more disturbing is that people are consuming excessive sugar in the form of fructose or high-fructose corn syrup (HFCS). This highly processed form of sugar is cheaper yet 20 percent sweeter than regular table sugar, which is why many food and beverage manufacturers decided to use it for their products, as it would allow them to save money in the long run.

HFCS is found in almost all types of processed foods and drinks today. Just take a look at this infographic to see just how much fructose is hiding in some of the most common foods you eat.

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The bad news is that the human body is not made to consume excessive amounts of sugar, especially in the form of fructose. In fact, your body metabolizes fructose differently than sugar. It is actually a hepatotoxin and is metabolized directly into fat – factors that can cause a whole host of problems that can have far-reaching effects on your health.

Effects of Consuming Too Much Sugar

Dr. Robert Lustig, a professor of Clinical Pediatrics in the Division of Endocrinology in the University of California and a pioneer in decoding sugar metabolism, says that your body can safely metabolize at least six teaspoons of added sugar per day. But since most Americans are consuming over three times that amount, majority of the excess sugar becomes metabolized into body fat – leading to all the debilitating chronic metabolic diseases many people are struggling with.

Here are some of the effects that consuming too much sugar has on your health:

According to the latest research, the safest range of uric acid is between 3 to 5.5 milligrams per deciliter. If your uric acid level is higher than this, then it's clear that you are at risk to the negative health impacts of fructose.

Sugar Increases Your Risk of Disease

One of the most severe effects of eating too much sugar is its potential to wreak havoc on your liver, leading to a condition known as non-alcoholic fatty liver disease (NAFLD).

Yes, the same disease that you can get from excessive alcohol intake can also be caused by excessive sugar (fructose) intake. Dr. Lustig explained the three similarities between alcohol and fructose:2

But if you think that's the only way eating too much sugar wreaks havoc on your body, you're dead wrong. Research from some of America's most respected institutions now confirms that sugar is a primary dietary factor that drives obesity and chronic disease development.

One study found that fructose is readily used by cancer cells to increase their proliferation – it "feeds" the cancer cells, promoting cell division and speeding their growth, which allow the cancer to spread faster.3

Alzheimer's disease is another deadly illness that can arise from too much sugar consumption. A growing body of research found a powerful connection between a high-fructose diet and your risk of developing Alzheimer's disease, through the same pathway that causes type 2 diabetes. According to some experts, Alzheimer's and other brain disorders may be caused by the constant burning of glucose for fuel by your brain.

Other diseases that are linked to metabolic syndrome and may potentially arise because of too much sugar consumption include:

Type 2 diabetes

Hypertension

Lipid problems

Heart disease

Polycystic ovarian syndrome

Dementia

How to Manage and/or Limit Your Sugar Consumption

Sugar, in its natural form, is not inherently bad, as long as it's consumed in moderation. This means avoiding all sources of fructose, particularly processed foods and beverages like soda. According to SugarScience.org, 74 percent of processed foods contain added sugar stealthily hidden under more than 60 different names.4 Ideally, you should spend 90 percent of your food budget on whole foods, and only 10 percent or less on processed foods.

I also advise you to severely limit your consumption of refined carbohydrates (waffles, cereals, bagels, etc.) and grains, as they actually break down to sugar in your body, which increases your insulin levels and causes insulin resistance.

As a general recommendation, I advise you to keep your total fructose consumption below 25 grams per day, including that from whole fruit. Keep in mind that although fruits are rich in nutrients and antioxidants, they also naturally contain fructose, and if consumed in high amounts may actually worsen your insulin sensitivity and raise your uric acid levels. Check out this article to see how much fructose is in the common fruits you eat.

Remember that artificial sweeteners like aspartame and sucralose are also a no-no, as they actually come with a whole new set of health problems that are much worse than what sugar or corn syrup can bring. Here are some additional dietary tips to remember:

How to Shake Off Your Sugar Cravings

The temptation to eat or indulge in sugary foods will always be there, especially with the abundance of processed foods and fast foods everywhere. However, most sugar cravings arise because of an emotional challenge. If this is what causes you to crave sugar, the best solution I could recommend is the Emotional Freedom Technique (EFT). This psychological acupuncture technique is a simple and effective strategy to help control your emotional food cravings.

The video below, which features EFT practitioner Julie Schiffman, demonstrates how to use EFT to fight food cravings.

If you feel that your emotions and/or your own self-image is what's pushing you to keep consuming sugar-loaded foods and other unhealthy treats, I recommend you try this useful technique. Prayer, meditation, exercise, and yoga are also effective tools you can try to ward off your sugar cravings.

[+]Sources and References [-]Sources and References

  • 1 National Geographic August 2013
  • 2 Journal of the American Dietetic Association, September 2010, Volume 110, Issue 9 Pages 1307-1321
  • 3 Cancer Res August 1, 2010 70; 6368
  • 4 Sugarscience.org, 61 Names for Sugar