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

 

Forestry: Man Charged After 2013 Death

Levin Police have arrested and charged a man with manslaughter in relation to the death of Lincoln Kidd who was killed during a tree felling operation on 19 December 2013. More>>

Smells Like Justice: Dairy Company Fined Over Odour

Dairy company fined over odour Dairy supply company Open Country Dairy Limited has been convicted and fined more than $35,000 for discharging objectionable odour from its Waharoa factory at the time of last year’s ”spring flush” when milk supply was high. More>>

Scoop Business: Dairy Product Prices Decline To Lowest Since July 2012

Dairy product prices dropped to the lowest level since July 2012 in the latest GlobalDairyTrade auction, led by a slump in rennet casein and butter milk powder. More>>

ALSO:

SOE Results: TVNZ Lifts Annual Profit 25% On Flat Ad Revenue, Quits Igloo

Television New Zealand, the state-owned broadcaster, lifted annual profit 25 percent, ahead of forecast and despite a dip in advertising revenue, while quitting its stake in the pay-TV Igloo joint venture with Sky Network Television. More>>

ALSO:

Insurers Up For More Payouts: Chch Property Investor Wins Policy Appeal In Supreme Court

Ridgecrest NZ, a property investor, has won an appeal in the Supreme Court over insurance cover provided by IAG New Zealand for a Christchurch building damaged in four successive earthquakes. More>>

ALSO:

Other Cases:

Royal Society: Review Finds Community Water Fluoridation Safe And Effective

A review of the scientific evidence for and against the efficacy and safety of fluoridation of public water supplies has found that the levels of fluoridation used in New Zealand create no health risks and provide protection against tooth decay. More>>

ALSO:

Scoop Business: Croxley Calls Time On NZ Production In Face Of Cheap Imports

Croxley Stationery, whose stationery brands include Olympic, Warwick and Collins, plans to cease manufacturing in New Zealand because it has struggled to compete with lower-cost imports in a market where the printed word is giving way to electronic communications. More>>

ALSO:

Prefu Roundup: Forecasts Revised, Surplus Intact

The National government heads into the election with its Budget surplus target broadly intact, delivering a set of economic and fiscal forecasts marginally revised from May to reflect weaker commodity prices and a lower tax take. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus

Standards New Zealand

Standards New Zealand
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news