Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


New research into optimising our levels of vitamin C

Monday March 4, 2013

New research into optimising our levels of vitamin C

A daily vitamin C intake equivalent to eating two kiwifruit a day is required to ensure our muscles maintain optimal levels, researchers from the University of Otago, Christchurch have found.

Professor Margreet Vissers and her team from the Centre for Free Radical Research are involved in a large on-going study to better understand the critical role of vitamin C in the human body. They are also investigating the best way to obtain the vitamin from the diet.

Their paper on the uptake of vitamin C into muscle has just been published in the American Journal of Clinical Nutrition, the most prestigious publication in the field of nutrition science.

The study has shown that skeletal muscle is very sensitive to changes in vitamin C intake and that the vitamin C content in muscle will fall if intake decreases below optimal levels. This is likely to affect muscle function. Muscle is the largest store of vitamin C in our bodies.

Professor Vissers and her team gave 54 males aged between 18 and 35 either half a kiwifruit or two kiwifruit a day over a six week period. They then measured the vitamin C content in muscle and elsewhere in the body.

The researchers found that general energy levels were increased with the ‘two per day’ kiwifruit dose, and this is likely to reflect the optimal muscle function under these conditions.

She says eating high-value vitamin C foods, like kiwifruit, is the ideal way to maintain healthy levels.

“Many people think that all fruit and vegetables are equally able to supply vitamin C, but this is not the case. The levels in food vary hugely across the spectrum. We should eat a good range daily, but because many fruit contain only one tenth of a healthy daily vitamin C requirement, we would recommend at least one serve per day of a high-value food like kiwifruit. This will help you easily reach an optimal vitamin C intake, as well as delivering other vital nutrients.’’

The study was funded by Zespri International and the University of Otago.

ends


© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Power Outages, Roads Close: Easter Storm Moving Down Country

The NZ Transport Agency says storm conditions at the start of the Easter break are making driving hazardous in Auckland and Northland and it advises people extreme care is needed on the regions’ state highways and roads... More>>

ALSO:

Houses (& Tobacco) Lead Inflation: CPI Up 0.3% In March Quarter

The consumers price index (CPI) rose 0.3 percent in the March 2014 quarter, Statistics New Zealand said today. Higher tobacco and housing prices were partly countered by seasonally cheaper international air fares, vegetables, and package holidays. More>>

ALSO:

Notoriously Reliable Predictions: Budget To Show Rise In Full-Time Income To 2018: English

This year’s Budget will forecast wage increases through to 2018 amounting to a $10,500 a year increase in average full time earnings over six years to $62,200 a year, says Finance Minister Bill English in a speech urging voters not to “put all of this at risk” by changing the government. More>>

ALSO:

Prices Up, Volume Down: March NZ House Sales Drop 10% As Loan Curbs Bite

New Zealand house sales dropped 10 percent in March from a year earlier as the Reserve Bank’s restrictions on low-equity mortgages continue to weigh on sales of cheaper property. More>>

ALSO:

Scoop Business: Chorus To Appeal Copper Pricing Judgment

Chorus will appeal a High Court ruling upholding the Commerce Commission’s determination setting the regulated prices on the telecommunications network operator’s copper lines. More>>

ALSO:

Earlier:

Cars: Precautionary Recalls Announced For Toyota Vehicles

Toyota advises that a number of its New Zealand vehicles are affected by a series of precautionary global recalls. Toyota New Zealand General Manager Customer Services Spencer Morris stressed that the recalls are precautionary. More>>

ALSO:

'Gardening Club': Air Freight Cartel Nets Almost $12 Million In Penalties

The High Court in Auckland has today ordered Swiss company Kuehne + Nagel International AG to pay a penalty of $3.1 million plus costs for breaches of the Commerce Act. Kuehne + Nagel’s penalty brings the total penalties ordered in this case to $11.95 million ... More>>

ALSO:

Crown Accounts: Revenue Below Projections

Core Crown tax revenue has increased by $1.9 billion (or 5.0%) compared to the same time last year. However this was $1.1 billion less than expected and is reflected across most tax types, continuing the pattern of recent months. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news