Why Fruit Juice Makes You Fat and May Cause Diabetes

And no, it’s not to do with calories!

It’s because Fruit Juice easily turns to fat in your body.

All sugars can cause serious damage to your body and speed up the ageing process, but the worst of them all is fructose. This may come as a bit of a surprise to some, as fructose is found in fruit. We tend to think of fruit sugar as healthier than other forms of sugar, but this is certainly not the case.

A huge offender on the sugar front is ‘high fructose corn syrup’ which is liberally added to many processed and packaged foods, and to most soft drinks.

According to Dr Mercola:

“Fructose in particular is extremely pro-inflammatory, promoting AGE’s (see previous post for an explanation of AGE’s) and speeding up the ageing process. It also promotes the kind of dangerous growth of fat cells around your vital organs that are the hallmark of diabetes and heart disease. In one study, 16 volunteers on a high-fructose diet produced new fat cells around their heart, liver and other digestive organs in just 10 weeks.”

All sugars increase insulin levels, whilst at the same time decreasing the body’s ability to properly counteract the rise in blood sugar. This greatly increases the rate of degenerative disease and ageing.

Excess sugar also has a detrimental effect on your immune system, which will make you more vulnerable to infection and complications of other diseases.

Fructose is the worst of the sugars because it’s metabolized differently in the body to other sugars.

Whilst glucose is metabolized inside our cells, fructose goes straight to the liver.

(Table sugar and pasta and potatoes are half glucose, half fructose, but fruit sugar is all fructose. High Fructose Corn Syrup varies, but can easily be 45% glucose with 55% fructose.)

Fructose is twice as sweet as glucose, and when we eat fructose (excess fruit, or foods containing high fructose corn syrup) your liver has to work very hard to process it. If that fructose comes in liquid form, like fruit juice or soda, the fructose hits your system very quickly and causes your liver to go into overdrive to try and process it.

There’s only so much fructose the liver can metabolise, and any excess will quickly be converted to fat (triglycerides). These fats may either float around in the blood, or will be stored as fat in the body – or worse, in the liver (fatty liver disease).

When the liver starts storing excess fat, the body is on its way to developing insulin resistance and metabolic syndrome, and eventually Type 2 diabetes.

The best way to eat fruit is in moderation, and eaten together with some fat/protein, such as a few almonds or walnuts, to slow down the rate at which the fructose is released.

Fruits are not all bad though – the dark colouring of berries are highly beneficial, so small quantities at a time of these berries are very good for your overall health. Just use common sense and don’t gorge on too many at a time. The best fruits are the low glycaemic berries, like bilberry, blueberry, blackberry, acai, pomegranate, strawberry, and so on.