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14 Signs You're Consuming Too Much Added Sugar

Don’t ignore these sugar-related red flags.
FACT CHECKED BY Christopher Roback

Unhealthy added sugars are hidden in many foods. "Much sugar is added to processed foods such as donuts, bread, candy, soda, fruit punch, sweet tea, and even condiments like ketchup and barbeque sauce," says Johns Hopkins Health. "The result is that many people consume a large amount of added sugar that has no nutritional benefits. And too much added sugar can lead to health problems including high blood sugar, insulin resistance, metabolic syndrome, dental issues such as cavities, increased triglycerides, obesity and type 2 diabetes." Here are 14 signs you're consuming too much added sugar.

Craving More Sugar

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Eating too much added sugar can lead to a vicious cycle. "When we eat sugar, our blood sugar spikes and our bodies react by releasing insulin to lower it to a safe level. Often, the insulin brings blood sugar levels down too low which can cause fatigue, irritability and hunger," Katherine Masoud, APRN, tells Backus Hospital. "Our natural reaction is to reach for more sugar to get that energetic feeling back, which quickly becomes a vicious cycle."

Weight Gain

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Too much sugar can cause weight gain. "Overall, the problem with too much sugar is that it tends to mean your diet will be high in calories (energy) and this can lead to putting on weight," senior dietitian Victoria Taylor tells the British Heart Foundation. "Excess weight increases the chances of developing type 2 diabetes and heart and circulatory diseases."

Depression

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Too much sugar can impact mental health, researchers say. "High sugar diets have a number of influences on our health but our study shows that there might also be a link between sugar and mood disorders, particularly among men," says Anika Knüppel of the UCL Institute of Epidemiology and Health. "There are numerous factors that influence chances for mood disorders, but having a diet high in sugary foods and drinks might be the straw that breaks the camel's back."

Dental Issues

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Too much added sugar can cause tooth decay. "The sugar reacts with the bacteria that lives in the mouth," Dr Fadi Yassmin tells Bupa Dental. "It's the by-product of this that causes decay, the acid that rots the teeth. The more sugar you have, the more acid that's produced."

Belly Fat

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Too much added sugar is linked to dangerous belly fat. "When we consume too much sugar the excess is converted to fat and stored," PhD student So Yun Yi tells University of Minnesota School of Public Health. "This fat tissue located around the heart and in the abdomen releases chemicals into the body which can be harmful to health. Our results support limiting added sugar intake."

Type 2 Diabetes

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Too much added sugar can lead to type 2 diabetes. "Added sugars contribute calories to the diet, but no essential nutrients. This is why we often hear added sugars described as 'empty calories,'" Dr. Amy Morel L'Horset tells diaTribe. "For people with prediabetes or type 2 diabetes, their ability to efficiently move sugar from the bloodstream into the cells is often delayed due to insulin resistance. Keeping consumption of added sugar to small amounts is important for blood sugar management and overall health."

Bad Sleep

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Too much sugar can ruin your sleep. "A diet high in sugar can cause restlessness and disrupt sleep," Masoud says. "This often leads to a cycle where insufficient sleep increases cravings."

Headaches

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Headaches could be a sign of too much added sugar. "Eating too much simple sugar may lead to headaches in certain individuals due to how rapidly simple or processed sugars are absorbed, leading to a rapid spike in blood sugar and then a rapid decline," endocrinologist Dr. Rekha B. Kumar tells NewYork-Presbyterian – Health Matters. "This erratic blood sugar pattern can cause headaches, as opposed to consuming the sugar in complex carbohydrates, which are absorbed more slowly."

Liver Issues

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Too much added sugar can cause health issues for the liver. "Excess sugar takes a toll on the liver, too," according to NewYork-Presbyterian. "The quick sugar load causes a fast rise in blood sugar that can overwhelm the liver and lead to fatty liver and cirrhosis over time."

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Arthritis

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Too much sugar may cause inflammation and serious  joint issues. "Eating too much sugar can lead to inflammation, which can worsen joint pain and eventually lead to arthritis," according to NewYork-Presbyterian.

Bad Skin

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Sugar can wreak havoc on your skin. "When you eat sugary foods, your blood sugar spikes," Masoud says. "This causes inflammation and the secretion of sebum (an oily substance in your skin). That, coupled with inflammation, can lead to breakouts."

Heart Issues

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Too much sugar can lead to heart disease. "Excess sugar's impact on obesity and diabetes is well documented, but one area that may surprise many men is how their taste for sugar can have a serious impact on their heart health," says Dr. Frank Hu, professor of nutrition at the Harvard T.H. Chan School of Public Health. "The effects of added sugar intake — higher blood pressure, inflammation, weight gain, diabetes, and fatty liver disease — are all linked to an increased risk for heart attack and stroke."

Always Tired

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Too much sugar can lead to constantly feeling tired. "When we eat sugar, our blood sugar spikes and our bodies react by releasing insulin to lower it to a safe level. Often, the insulin brings blood sugar levels down too low which can cause fatigue, irritability and hunger," Masoud says.

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Cellular Aging

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Too much sugar may prematurely age you on the cellular level. "One could argue that eating too much sugar leads to aging due to increased stress on cells," says Dr. Kumar. "This is not the typical outward aging, such as getting gray hair and wrinkles, but it takes cells a lot of work to metabolize sugar and this can cause 'oxidative stress,' leading to free radicals, which are implicated in the aging process." And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

Ferozan Mast
Ferozan Mast is a science, health and wellness writer with a passion for making science and research-backed information accessible to a general audience. Read more