Why do I feel sick after I eat sugar? 

In this brief guide, we’ll address the query: “Why do I feel sick after I eat sugar?” Also, we’ll explore what the effect of sugar is on the body, what sugars you should avoid, when should you see a doctor if eating sugar makes you sick, and what are some important guidelines to follow regarding sugar consumption. 

Why do I feel sick after I eat sugar? 

If you feel sick after eating sugar, you’re most likely suffering from a sugar hangover. This may be due to sudden changes in your blood sugar levels. 

Symptoms of sugar hangover may include being lethargic (tired), having tremors, finding it difficult to focus on menial tasks, having a headache, and/or having digestive symptoms such as queasiness and nausea 

Furthermore, sugar hangovers may be indicative of a more serious underlying condition such as hyperglycemia (high levels of sugar in the bloodstream) or hypoglycemia. If either condition is left unattended, it can lead to more serious consequences such as ketoacidosis and sugar crashes. 

To summarize, sugar illness should not be taken lightly and you should see a licensed general practitioner who will perform tests to determine the underlying cause. 

What are the effects of sugar on the body? 

Sugar consumption can have many effects on the body, some important for everyday tasks, and other potentially hazardous effects. 

As is the case with many things, moderation is key to having a friendly relationship with sugar. 

When consumed in modest amounts, sugar can provide an energy boost, stimulate cognitive health, and it can trigger a feeling of well-being by stimulating the release of dopamine. 

However, when consumed in excess, sugar consumption can lead to insulin resistance, obesity, fatty liver disease, heart disease, circulatory problems, type 2 diabetes, and many other disorders. excessive consumption of sugar is also associated with high levels of oxidative stress. 

Oxidative stress is associated with the aforementioned health problems, and with other disorders such as premature aging, cancer, cognitive disorders, and other diseases. 

To reiterate, consuming sugar in modest amounts is essential for a person to remain healthy. 

What sugars should I avoid? 

Some sugars are more noxious than others. sugars such as those that are refined or synthetic should be avoided; they provide more calories and lower nutritional content.

Sugars are ubiquitous in food products.  They can be found in starchy vegetables, fruit, milk, pastries, grains, and of course, in junk foods such as soda drinks, sweets, etc.

As a general rule, people should avoid refined sugars, added sugars, and sugars that are the main components of empty calories. Namely, this may allude to high fructose corn syrup, which is a product derived from starch that has been processed via enzyme digestion and made into a highly sweet product. 

The healthier a sugar type is, the less refined it’ll be. For example, brown sugar is healthier than white sugar, and whole grains are healthier than milled grains which are essentially pure starch. 

When should I see a doctor if eating sugar makes me sick? 

See a doctor if sugar consumption consistently triggers debilitating symptoms that interfere with your daily life and activities.

If you experience debilitating symptoms such as fainting, dizziness , exhaustion, constant hunger, constant thirst and others after eating sugar you should see your licensed general practitioner.  

Your doctor may suspect diabetes but by performing objective tests he or she will reach a clinically validated diagnosis. 

On the other hand, you may be suffering from low blood sugar, clinically referred to as hypoglycemia. If improperly managed, hypoglycemia is a debilitating condition that can seriously curtail a person’s daily lifestyle. 

Fortunately, both conditions are treatable, and a medical professional can provide tailored medical orientation for either. 

What guidelines should I follow if I want to eat sugar? 

General guidelines people should follow if they want to eat sugar include avoiding refined sugars,  being mindful of their everyday sugar intake, and avoiding empty calories such as those sourced from high fructose corn syrup

Last but not least we urge our readers to combine moderate sugar consumption with an active lifestyle that includes aerobic exercise.

We need to recall that unused sugar converts to glycogen which is stored as adipose tissue.  For this reason, it’s important to maintain a healthy lifestyle and a balanced diet.  

This also implies curtailing the consumption of sweets such as candies, pastries , sodas and recipes that are high in sugar and substituting them with dishes and foods that are lower in sugar and calories. 


In this brief guide, we’ve addressed the query: “Why do I feel sick after I eat sugar?” Also, we’ve explored what the effect of sugar is on the body, what sugars you should avoid, when should you see a doctor if eating sugar makes you sick, and what are some important guidelines to follow regarding sugar consumption. 










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