The effects of sugar on the body are multi-fold.
What does “Added sugar” mean?
Any sugar added in preparation of foods, either at the table, in the kitchen or in the processing plant. This may include sucrose, high fructose corn syrup and others. http://sugarscience.ucsf.edu/glossary.html#.WP_NFIjyuUl
Sugar is a neurotoxin
In a 2010 study, Scott Kanoski, assistant professor of biological sciences at Perdue University in the US, showed that as little as three days of a diet that is high in saturated fat and sugar was enough to change cognition in rats. The Effects of a High-Energy Diet on Hippocampal Function and Blood-Brain Barrier Integrity in the Rat
Sugar destroys your liver:
Sugar acts as a chronic, dose-dependent liver toxin (poison) when consumed in excess, according to Dr. Robert Lustig, professor of Pediatric Endocrinology at the University of California, San Francisco (USCF).
Too much fructose can damage your liver, just like too much alcohol
Fructose is the sugar that makes fruit taste sweet. For most people, there’s nothing wrong with eating fructose in its natural state, in fruit.
But today, manufacturers extract and concentrate the fructose from corn, beets and sugarcane, removing the fiber and nutrients in the process. Getting frequent, high doses of fructose throughout the day, without fiber to slow it down, is more than our bodies were designed to handle.
Nearly all added sugars contain significant amounts of fructose.3 Typical formulations of high-fructose corn syrup contain upwards of 50% fructose, depending on processing methods. Table sugar and even sweeteners that sound healthy, like organic cane sugar, are 50% fructose.
UCSF Mini Medical School lecture about sugar by doctor Robert Lustig, MD
Pediatric endocrinologist Robert Lustig, MD gave a UCSF Mini Medical School lecture about sugar and obesity in July 2009. Over 7 million people have watched the YouTube watched the 90-minute video as of April 2017.
“I have been very gratified by both the volume of the response, and the quality of response that the video has garnered,” says Lustig, who serves as director of UCSF’s Weight Assessment for Teen and Child Health, or WATCH, Clinic. “I also have been very touched by the personal testimonials of many patients who have written to me about their own travails.”
In the YouTube video, Lustig argues that the current obesity epidemic can be blamed on a marked increase in the consumption of a type of sugar called fructose over the last 30 years. Fructose is a component of the two most popular sugars: sucrose or table sugar, and high-fructose corn syrup, which has become ubiquitous in soft drinks and many processed foods.
Lustig says that fructose is toxic in large quantities because it is metabolized in the liver in the same way as alcohol, which drives fat storage and makes the brain think it is hungry.
“People are searching for answers to this epidemic that make sense,” he says. “The science of fructose metabolism in the liver and fructose action in the brain turn the normal cycle of energy balance into a vicious cycle of consumption and disease.
“What I have proposed is quite controversial; that our food supply has been adulterated right under our very noses, with our tacit complicity. But I think the public gets it, and the tide is turning.”
Read more about the UCSF Lecture on Sugar & Obesity Goes Viral as Experts Confront Health Crisis at http://www.ucsf.edu/news/2010/03/3222/ucsf-lecture-sugar-and-obesity-goes-viral-experts-confront-health-cri