I recently watched two fascinating lectures on YouTube by the world-renowned academic Professor Robert Lustig. The first video dates back to 2009 and has more than 4.3 million views. The second lecture is from 2013 and links directly to the one he gave four years earlier. Both YouTube videos are included below.
Firstly by way of background: there are many different types of sugars. Examples include: fructose; lactose; glucose; and sucrose (which is actually 50% fructose and 50% glucose). Conventional table sugar is sucrose, i.e. 50% fructose and 50% glucose, and it is the fructose half of sucrose that is the major cause for concern.
Sugar (sucrose) – and fructose in particular – is an addictive poison that is incredibly harmful to human health. This is because: a) it cannot be properly processed by the body; b) it is addictive and fools our brain into thinking we’re not full, leading to overeating; and c) it is more quickly converted and stored as fat by the liver.
Dangerous sugars such as sucrose and fructose should not to be confused with other sugars like glucose and lactose, which are useful nutrients in a healthy diet. In other words, food items such as chocolate (sucrose) or fruit juice (fructose) are bad; whereas foods like bread (glucose) and milk (lactose) are fine in moderation.
In summary, sugar makes you fat and it makes you sick, and sugar poses the greatest threat to human health in the 21st century. Unfortunately modern society is naïvely unaware of the dangers of sugar, in much the same way that society in the 20th century was unaware of the dangers of smoking.
Learning the truth about sugar has been a real eye-opener for me and that’s why I want to help spread the word. I would urge everyone to watch these lectures to really understand the science behind sugar. This article published in January 2014 is also helpful in understanding the sheer gravity of the situation.
It would seem logical for the purpose of improving one’s health, and avoiding diseases like diabetes, to quickly and permanently remove sugar from our diets. And that is precisely what I myself am now trying to do.
Update – Here’s another very useful video but this time only 15 minutes long, which summarises a lot of what Professor Lustig is talking about in the above lectures:
Update – Follow up article here on my month-long experiment without sugar and subsequent decision to give it up almost entirely.