An MD by the name of Robert H. Lustig gave a lecture about 2 years ago called Sugar: The Bitter Truth
. This video has a reasonably extraordinary claim - that fructose is a poison that is the significant cause of Metabolic syndrome. In this lecture he shows correlation from a large number of sources including historic data on sugar levels to a study that he co-authored. As we know correlation does not mean causation. He shows proof of falsifiability through the sequencing of how the body breaks down glucose verse how it breaks down fructose. It might be possible that a part of the body does use fructose that he
does not have information on which allows for falsifiability. If the sugars are not broken down as described a different result may found to occur through retesting of the enzymes. This allows for replicability. MD Lustig also shows data explaining the conversion from a higher fat diet (~40%) to a lower fat diet (~30%) that coincides with the increase in fructose consumption, namely from adding sugar or HFCS to a now bland food product. By doing this he rules out a major rival hypothesis, that fat is making us fat. By the nature of occam's razor higher intake of a single substance(fructose) from 15gms per day in pre-WWI to a current level of 72.8gms per day result in a dramatic changed effect.
In all, Md Lustig has the evidence required to stand up to his claim. He shows where each disease stems from in the process of the breakdown of fructose in the liver. His evidence is as strong as the claim.
If you don't have time to watch the 90 minute video
there is also an MP3 version
as well as a fan shortened version(11 min
) to make this easier.
How much weight could you lose just by decreasing your intake? Is fructose consumption something that you would consider changing in your life?