We all know the feeling of a sugar high. After eating something sugary, we feel an initial rush of energy followed by a crash. But how long does this feeling usually last? And what causes it?
How Long Does Sugar High Last?
A sudden increase in blood sugar levels causes sugar highs.

Sugar rushes are caused by consuming sugary foods and can last for around 30-40 minutes. Symptoms like sudden energy, hyperactivity, and craving more sugar are common. The crash from a sugar high depends on the person but can be 15 minutes to a couple of hours after eating. The most dangerous contributing factor to sugar is an underestimation.
Symptoms like dizziness, headache, and feeling tired or jittery may occur. The sugar rush usually lasts about 30 to 40 minutes, but it can last up to two hours.
What is a sugar high?
A sugar high is a temporary feeling of euphoria or hyperactivity that is caused by eating sugary foods. However, research shows that sugar does not cause hyperactivity or aggravate most people’s ADHD symptoms.
A meta-analysis of 16 studies on sugar and hyperactivity concluded that sugar does not affect children’s behavior or cognitive performance.
Most sweets and sweet desserts contain artificial colors and preservatives. A Lancet research discovered that some artificial colors and preservatives enhance hyperactivity in youngsters.
Could artificial colors and preservatives, not sugar, cause hyperactivity in children? Possibly. Research is inconclusive.
Eating sugary foods can cause a sugar high because they cause a sudden spike in blood sugar levels. When blood sugar levels rise too quickly, the body releases insulin to bring them back down. This reaction is known as hypoglycemia.
Why do we get sugar highs?
The sugar-hyperactivity myth is based on a mid-1970s study in which removing sugar from one child’s diet improved his behavior. Since then, over a dozen larger studies haven’t linked sugar to hyperactivity.
Sugar affects your brain like cocaine. Sugar boosts dopamine and serotonin levels.
Sugars dominate carbs. Carbon, hydrogen, and oxygen give them their name. Length of carbohydrate’s sugar chain affects digestion and absorption.
When you eat carbohydrates, your body breaks them down into simple sugars. The pancreas releases insulin as blood sugar rises. Insulin moves blood sugar into cells, which can be used as energy.
“Sugar rush” is a myth and that, if anything, a sugary snack is likely to lower your mood and make you feel more tired.
What are the symptoms of a sugar high?
A sugar high is a condition that can occur after eating sugary foods. The symptoms of a sugar high include feeling very thirsty, increased urination, blurred vision, feeling weak or tired, and headache. High sugar can lead to serious health complications such as diabetes if left untreated.
How can I avoid getting a sugar high?
A sugar high is a period of hyperactivity caused by consuming large amounts of sugar. The effects of a sugar high can last for 30-40 minutes, after which the individual may experience a sugar low, characterized by fatigue and lethargy. To avoid getting sugar high, consuming complex carbohydrates instead of simple sugars and drinking plenty of water is recommended.
How do you come down from a sugar high?
First, drink plenty of water. You know this is important to do every day to stay healthy, but it is even more important today. Excess sugar and refined carbohydrates can cause dehydration.
Have a spoonful of peanut butter or a handful of nuts. Peanuts and peanut butter have even been shown to help lessen the spike in blood sugar when paired with high-carbohydrate or high-GL foods.
Foods high in protein, fiber, and healthy fats will help you feel fuller and longer and stabilize your blood sugar levels. High blood sugar (hyperglycemia) in people with diabetes can be reduced immediately by taking rapid-acting insulin.
If you don’t have diabetes, increase your dietary fiber intake. Eating high-fiber foods may help you stave off hunger and cravings. They take longer to digest, causing you to feel fuller longer.

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