What happens in your body when you eat sugar?

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What happens in your body when you eat sugar?

Tatiana A. Dias
September 19th, 2017

Humans are programmed to love sugar! Sugar is the main source of energy for our cells. Complex carbohydrates like starch are fragmented into simple sugars during digestion and then metabolised by cells to generate energy. Your blood normally contains 5g (about a teaspoon) of dissolved sugar. That’s just about 20 calories, which is sufficient for a five-minute walk. Too much sugar is widely acknowledged as bad for your health, but what sugar actually do?



Sugar makes the brain discharge dopamine and opioids – the natural pleasure chemicals. Rats on high-sugar diets behave like drug addicts because of it.



The liver uses fructose to create fat via a process called lipogenesis. An excess of sugar causes a build-up of fat globules called non-alcoholic liver disease.





Bacteria, such as Streptococcus mutans, eat leftover sugar in your mouth and ferment it into lactic acid. This dissolves the minerals in your tooth enamel.



Rising blood sugar levels stimulate beta cells to produce insulin. This tells the liver and muscles to begin transforming glucose into glycogen for storage.



Glucose and fructose form bonds between amino acids that transform collagen and elastin into substances that cause wrinkles.



High insulin levels in the blood make smooth muscle cells around the artery walls grow quicker. This raises blood pressure, eventually leading to heart disease.


Exceptionally addictive, horribly debilitating, unfortunately pervasive, and incredibly delicious. Fear not, as we’ve come up with the perfect solution. It may sound simple, and that’s because it is. Eat less sugar if you want to live longer! The end.


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“ Sugar is the main source of energy for our cells. ”

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