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Carbohydrates don't only make you fat, they make you sick

20 February 2015, 19:01

There are so many conflicting theories on carbohydrates: some say we need them and they're absolutely necessary as part of a balanced diet, while others say they should only be consumed in small quantities or they'll make you fat.

Dr Gary Fettke, an Orthopaedic Surgeon and Senior Lecturer of the University of Tasmania in Australia, who is a speaker at the 2015 Old Mutual Health Convention, adds to the controversy and says that carbohydrates - those containing fructose, can cause major lifestyle diseases.

Dr Fettke says the consumption of fructose (50% of Sugar), polyunsaturated oils and refined carbohydrates combine in our diet to create inflammation in every blood vessel wall and in every tissue in every organ of the body. He is convinced that these three look to be the major contributors to most of our modern conditions including obesity, diabetes, heart disease, dementia, cancer and a raft of other conditions.

Inflammation in a certain part of the body makes it susceptible to a variety of other influences and that, along with genetics, the chemicals in our society and radiation, makes that body part vulnerable to disease.

Video: Fetkke's theory on how nutrition influences disease

Common diseases and how consuming high amounts of fructose can influence them:

1. Obesity

Fettke calls fructose (a so-called ‘simple sugar’ found in honey, fruit, vegetables and other plant materials) is a potent appetite stimulant that ‘makes’ us eat more than we should and in this way makes people vulnerable to overeating and obesity.

2. Type 2 Diabetes

Sugar Diabetes should be called Carbohydrate Diabetes, in Fettke's opinion. He explains that although obesity is the single greatest risk factor for Type 2 Diabetes, high fructose consumption puts people at risk for Diabetes due to the fact that it is addictive and if consumed in large amounts, studies have found fructose to be substantially more toxic to organisms than plain glucose.

Fettke says that a very low carbohydrate and high fat (LCHF) diet can manage diabetes.

3. Cancer

Although Fettke would like to better research his theory on the link between fructose and cancer, he explains that the combination of fructose and polyunsaturated oils create a susceptible organ on which a trigger can act and that susceptibility allows the growth of abnormal cells.

According to Fettke's theory there are three phases to the development of a cancer, and the same applies to most other disease:

Phase 1: Fructose consumption creates low grade inflammation. Once the the inflammation is there, the cell in an organ undergoes an abnormal change/ irritation. If this irritation continues over a long period of time then those cells can start developing abnormalities and some of them may in fact turn into cancer cells.

Phase 2: Those cells then have the ability to divide and and grow.

Phase 3: The body has natural clearing mechanisms within it for taking away abnormal cells and material, but under a fructose high environment, the body is not as efficient in clearing up any abnormal cells developing in the body.

With increasing abnormal cells, growing in an inflamed environment and not being able to be cleared away, falls well within a model for creating a cancer, Fettke says.

Watch: The trailer of the That Sugar Film that lifts the lid on fructose consumption in the modern diet. Dr Fettke, along with the film's director Damon Gameau answered questions from the audience during the showing in Australia. Details of a South African release are not yet available. 


Dr Fettke's talk is likely to generate huge interest at the Health Convention and add further momentum to the LCHF movement in South Africa. The convention runs from Thursday 19th February 2015 until Sunday 22nd February 2015. The first three days will focus on the medical aspects, while Sunday is aimed at the general public.

Sources: Garry Fettke's - NoFructose.com

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