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Reasons Why Too Much Sugar Is Bad for You

From marinara sauce to peanut butter, added sugar can be found in even the most unexpected products.

Many people rely on quick, processed foods for meals and snacks. Since these products often contain added sugar, it makes up a large proportion of their daily calorie intake.

Dietary guidelines suggest limiting calories from added sugar to less than 10% per day.

Experts believe that sugar consumption is a major cause of obesity and many chronic diseases, such as diabetes.

Here are reasons why eating too much sugar is bad for your health.

  1. Can Cause Weight Gain

Rates of obesity are raising worldwide and added sugar, especially from sugar-sweetened beverages, is thought to be one of the main culprits.

Sugar-sweetened drinks like sodas, juices and sweet teas are loaded with fructose, a type of simple sugar.

Consuming fructose increases your hunger and desire for food more than glucose, the main type of sugar found in starchy foods.

Additionally, excessive fructose consumption may cause resistance to leptin, an important hormone that regulates hunger and tells your body to stop eating.

In other words, sugary beverages don’t curb your hunger, making it easy to quickly consume a high number of liquid calories. This can lead to weight gain.

Research has consistently shown that people who drink sugary beverages, such as soda and juice, weigh more than people who don’t.

Also, drinking a lot of sugar-sweetened beverages is linked to an increased amount of visceral fat, a kind of deep belly fat associated with conditions like diabetes and heart disease.

  1. May Increase Your Risk of Heart Disease

High-sugar diets have been associated with an increased risk of many diseases, including heart disease, the number one cause of death worldwide.

Evidence suggests that high-sugar diets can lead to obesity, inflammation and high triglyceride, blood sugar and blood pressure levels — all risk factors for heart disease.

Additionally, consuming too much sugar, especially from sugar-sweetened drinks, has been linked to atherosclerosis, a disease characterized by fatty, artery-clogging deposits.

A study in over 30,000 people found that those who consumed 17–21% of calories from added sugar had a 38% greater risk of dying from heart disease, compared to those consuming only 8% of calories from added sugar.

Just one 16-ounce (473-ml) can of soda contains 52 grams of sugar, which equates to more than 10% of your daily calorie consumption, based on a 2,000-calorie diet.

This means that one sugary drink a day can already put you over the recommended daily limit for added sugar.

  1. Has Been Linked to Acne

A diet high in refined carbs, including sugary foods and drinks, has been associated with a higher risk of developing acne.

Foods with a high glycemic index, such as processed sweets, raise your blood sugar more rapidly than foods with a lower glycemic index.

Sugary foods quickly spike blood sugar and insulin levels, causing increased androgen secretion, oil production and inflammation, all of which play a role in acne development.

Studies have shown that low-glycemic diets are associated with a reduced acne risk, while high-glycemic diets are linked to a greater risk.

For example, a study in 2,300 teens demonstrated that those who frequently consumed added sugar had a 30% greater risk of developing acne.

Also, many population studies have shown that rural communities that consume traditional, non-processed foods have almost non-existent rates of acne, compared to more urban, high-income areas

These findings coincide with the theory that diets high in processed, sugar-laden foods contribute to the development of acne.

  1. Increases Your Risk of Diabetes

The worldwide prevalence of diabetes has more than doubled over the past 30 years.

Though there are many reasons for this, there is a clear link between excessive sugar consumption and diabetes risk.

Obesity, which is often caused by consuming too much sugar, is considered the strongest risk factor for diabetes.

What’s more, prolonged high-sugar consumption drives resistance to insulin, a hormone produced by the pancreas that regulates blood sugar levels.

Insulin resistance causes blood sugar levels to rise and strongly increases your risk of diabetes.

A population study comprising over 175 countries found that the risk of developing diabetes grew by 1.1% for every 150 calories of sugar, or about one can of soda, consumed per day.

Other studies have also shown that people who drink sugar-sweetened beverages, including fruit juice, are more likely to develop diabetes.

  1. May Increase Your Risk of Cancer

Eating excessive amounts of sugar may increase your risk of developing certain cancers.

First, a diet rich in sugary foods and beverages can lead to obesity, which significantly raises your risk of cancer.

Furthermore, diets high in sugar increase inflammation in your body and may cause insulin resistance, both of which increase cancer risk.

A study in over 430,000 people found that added sugar consumption was positively associated with an increased risk of esophageal cancer, pleural cancer and cancer of the small intestine (23)

Another study showed that women who consumed sweet buns and cookies more than three times per week were 1.42 times more likely to develop endometrial cancer than women who consumed these foods less than 0.5 times per week.

Research on the link between added sugar intake and cancer is ongoing, and more studies are needed to fully understand this complex relationship.

  1. May Increase Your Risk of Depression

While a healthy diet can help improve your mood, a diet high in added sugar and processed foods may increase your chances of developing depression.

Consuming a lot of processed foods, including high-sugar products such as cakes and sugary drinks, has been associated with a higher risk of depression.

Researchers believe that blood sugar swings, neurotransmitter dysregulation and inflammation may all be reasons for sugar’s detrimental impact on mental health.

A study following 8,000 people for 22 years showed that men who consumed 67 grams or more of sugar per day were 23% more likely to develop depression than men who ate less than 40 grams per day.

Another study in over 69,000 women demonstrated that those with the highest intakes of added sugars had a significantly greater risk of depression, compared to those with the lowest intakes.

  1. May Accelerate the Skin Aging Process

Wrinkles are a natural sign of aging. They appear eventually, regardless of your health.

However, poor food choices can worsen wrinkles and speed the skin aging process.

Advanced glycation end products (AGEs) are compounds formed by reactions between sugar and protein in your body. They are suspected to play a key role in skin aging

Consuming a diet high in refined carbs and sugar leads to the production of AGEs, which may cause your skin to age prematurely

AGEs damage collagen and elastin, which are proteins that help the skin stretch and keep its youthful appearance.

When collagen and elastin become damaged, the skin loses its firmness and begins to sag.

In one study, women who consumed more carbs, including added sugars, had a more wrinkled appearance than women on a high-protein, lower-carb diet

The researchers concluded that a lower intake of carbs was associated with better skin-aging appearance

  1. Can Increase Cellular Aging

Telomeres are structures found at the end of chromosomes, which are molecules that hold part or all of your genetic information.

Telomeres act as protective caps, preventing chromosomes from deteriorating or fusing together.

As you grow older, telomeres naturally shorten, which causes cells to age and malfunction

Although the shortening of telomeres is a normal part of aging, unhealthy lifestyle choices can speed up the process.

Consuming high amounts of sugar has been shown to accelerate telomere shortening, which increases cellular aging

A study in 5,309 adults showed that regularly drinking sugar-sweetened beverages was associated with shorter telomere length and premature cellular aging

In fact, each daily 20-ounce (591-ml) serving of sugar-sweetened soda equated to 4.6 additional years of aging, independent of other variables

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