Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.

Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.


Diabetes: Fresh fruit better than juice

30 August 2013, 17:29

Abuja - Eating more whole fresh fruit, especially blueberries, grapes, apples and pears, is linked to a lower risk of type 2 diabetes, but drinking more fruit juice has the opposite effect, says a study.

British, US and Singaporean researchers pored over data from three big health investigations that took place in the United States, spanning a quarter of a century in all.

More than 187 000 nurses and other professional caregivers were enrolled.

Their health was monitored over the following years, and they regularly answered questionnaires on their eating habits, weight, smoking, physical activity and other pointers to lifestyle.

Around 6.5% of the volunteers developed diabetes during the studies.

People who ate at least two servings each week of certain whole fruits, especially blueberries, grapes and apples, reduced their risk of Type 2 diabetes by as much as 23% compared to those who ate less than one serving per month.

"Our findings provide novel evidence suggesting certain fruits may be especially beneficial for lower diabetes risk," said Qi Sun, an assistant professor of nutrition at the Harvard School of Public Health.

On the other hand, those who consumed one or more servings of fruit juice each day saw their risk of the disease increase by as much as 21%.

Significant difference

Swapping three servings of juice per week for whole fruits resulted in a 7% reduction in risk, although there was no such difference with strawberries and cantaloupe melon.

The paper, published on Friday by the British Medical Journal (BMJ), says further work is needed to explore this "significant" difference.

It speculates that, even if the nutritional values of whole fruit and fruit juice are similar, the difference lies with the fact that one food is a semi-solid and the other a liquid.

"Fluids pass through the stomach to the intestine more rapidly than solids even if nutritional content is similar," says the paper.

"For example, fruit juices lead to more rapid and larger changes in serum [blood] levels of glucose and insulin than whole fruits."

The study also points to evidence that some kinds of fruit have a beneficial effect for health.

Berries and grapes, for instance, have compounds called anthocyanins which have been found to lower the risk of heart attacks.

But, say the authors, how or even whether this also applies to diabetes risks is for now unclear.

The investigation looked at data from the Nurses' Health Study, which ran from 1984-2008; the Nurses' Health Study II (1991-2009); and the Health Professionals Follow-Up Study (1986-2008).

Ten kinds of fruit were used in the questionnaire: grapes or raisins; peach, plums or apricots; prunes; bananas; cantaloupe melon; apples or pears; oranges; grapefruit; strawberries; and blueberries.

The fruit juices identified in the questionnaire were apple, orange, grapefruit and "other."



Read News24’s Comments Policy

Comment on this story
Comments have been closed for this article.

Read more from our Users

Submitted by
Shakila Alivitsa
What do men mean when they say th...

As much as men think they are the ones confused by relationships, they have a better idea of it than most women actually do. Read more...

Submitted by
William Korir
DP Ruto, not Kenneth the main man...

DP William Ruto will be the main man for the Jubilee Party in 2022, Kiraitu Murungi insists. Read more...

Submitted by
William Korir
Jittery times for DP Ruto as Kenn...

Peter Kenneth is a genuine threat to DP William Ruto's 2022 State House bid... and the DP's allies know it. Read more...

Submitted by
William Korir
I will name those sabotaging DP R...

A Jubilee Party Governor says that he will name and shame those within Jubilee he says are undermining DP William Ruto's 2022 State House plans. Read more...

ODM official acquitted of defilem...

A Nakuru ODM official on Thursday broke into tears after the court acquitted him of defilement charges leveled against him by his 15-year-old cousin. Read more...

Submitted by
Victor Tinto
Man who attacked US Embassy a 24 ...

A man who attacked the US Embassy in Nairobi was a 24 year old from Wajir County. Read more...