VITAMIN C AND kiwifruit
― Kiwifruit: the vitamin C champion
Vitamin C is an essential nutrient that everybody needs on a daily basis. Zespri kiwifruit is a rich in vitamin C and is one of the best sources among fruit and vegetables – Zespri SunGold kiwifruit contains more than three times the amount of vitamin C found in oranges! Just one Zespri kiwifruit a day provides you with your daily requirement.
Did you know that your body cannot make or even store vitamin C? For optimum health and wellbeing, you need to eat a source of vitamin C every day to keep your levels topped up. The best sources are fresh, whole fruit
It has been demonstrated that eating Zespri kiwifruit daily is very effective in delivering vitamin C to where the body needs it, via the blood. Eating one kiwifruit per day helps to maintain your required vitamin C levels. Having your vitamin C levels topped up daily will provide many benefits, some of which include:
- Keeping colds away by helping to keep the immune system strong.
- Giving you the vitality you need to get through the day by reducing tiredness and fatigue.
- Increasing collagen formation, which is essential for healthy skin, teeth and bones.
In Europe, the current recommended daily reference intake (RI) for vitamin C is 80 mg a day. One Zespri Green kiwifruit provides you with 85.1 mg of vitamin C, while one Zespri SunGold kiwifruit provides you with 161.3 mg of vitamin C – more than twice the RI!
KIWIFRUIT IMPROVES SKIN HEALTH
The vitamin C also helps your body produce collagen, an important protein in the skin that forms the basis for cells, which are the building blocks of the skin. Production of collagen decreases as we age, causing skin to lose elasticity. Getting enough vitamin C is important in keeping your skin healthy and improving collagen formation.
Vitamin C also acts as a powerful antioxidant. Antioxidants help defend the body’s cells against oxidative damage by substances called free radicals, which damage cells and DNA. Each time you convert food into energy, free radicals are formed. They can also enter your body from the outside world via exposure to UV light (sunlight), pollution and cigarette smoke. The vitamin C can help neutralise these free radicals, reducing the extent of cell damage.
- Sims IM, Monro JA Fiber: Composition, structures, and functional properties. Adv Food Nutr Res 2013 ;68:81-99.
- Kaur L, Rutherfurd SM,Moughan PJ, Drummond L, Boland MJ :Actinidin enhances protein digestion in the small intestine as assessed using in an in vitro digestion model. J Agric Food Chem.2010;58:5068-73.
- Han KS, Balan P, Molist Gasa F, Boland M: Green kiwifruit modulates the colonic microbiota in growing pigs.Lett Appl Microbiol 2011;52:379-85.
- Gearry, R. A multi-center clinical trial of the effect of kiwifruit on digestive and gut health functions. 1st International Symposium on Kiwifruit & Health.
- Carr AC, Bozonet SM, Pullar JM, Vissers MC: Mood improvement in young adult males following supplementation of yellow kiwifruit, a high-vitamin C food. Journal of nutritional science 2013; 2:e24.
- Bergsten P, Amitai G, Kehrl J, Dhariwal KR, Klein HG, Levine M: Millimolar concentrations of ascorbic acid in purified human mononuclear leukocytes. Depletion and reaccumulation. The journal of biological chemistry 1990; 265:2584-87.
- Washko PW, Wang Y, Levine M: Ascorbic acid recycling in human neutrophils. The Journal of biological chemistry 1993; 268: 15531-35.
- USDA. USDA national nutrient database for standard reference (release 28). 2015.