Fruit juice contains a large amount of sugar which raises blood sugar levels very quickly. Therefore, people with diabetes are usually best to avoid drinking fruit juice.
As a general rule, eating whole fruit is healthier than drinking fruit juice or fruit smoothies.
Once regarded as a healthy drink, recent research indicates that that regular consumption of fruit juice may increase the risk of developing type 2 diabetes.What's in fruit juice?
Aside from vitamin C and calcium, fruit juice contains:
Sugar levels in fruit juice can cause a significant spike in blood sugar levels, increasing the risk of hyperglycemia (too high blood sugar levels).
The glycemic index, which is used to reflect the impact on blood sugar levels of individual foods, places orange juice between 66 and 76 on a scale of 100. This makes fruit juice a high GI drink and high GI foods and drinks are best avoided by people with diabetes under most circumstances.
One situation in which fruit juice can be useful is to raise blood sugar quickly in response to hypoglycemia (too low blood sugar).Fruit juice and fructose
Fruit juice is high in a form of sugar called fructose. Fructose needs to be processed by the liver and research suggests that a diet that is high in fructose may cause the liver to be overwhelmed, leading to problems such as non-alcoholic fatty liver disease and type 2 diabetes.
It is important to note that table sugar is made up of 50% fructose and 50% sucrose. There a diet high in sugar will also be high in fructose.
These points are significant because it means that over-consumption of fruit juice or having fruit juice in addition to a high sugar diet may increase the risk of health problems.Benefits of fruit juice
Fruit juice has some benefits, however the benefits are generally outweighed by the disadvantage of the sugar content.
Fruit juice is a good source of nutrients such as vitamin C. However, it is better to get vitamin C from eating small portions of whole fruits or eating leafy green vegetables.
Leafy greens have a strong advantage over fruit or fruit juice in that they have much less effect on raising blood sugar levels.
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