Category Archives: Vitamin C

Three Frequently Asked Questions About Nutrition

Posted on August 9, 2015 by Robert Barrington
Posted in Exercise, Selenium, Supplements, Vitamin C, Vitamin D, Vitamin E, Weight Loss, Western Diet | Comments Off on Three Frequently Asked Questions About Nutrition

Alcohol Lowers Vitamin C Levels: An Interesting Little Study

Posted on July 28, 2015 by Robert Barrington

Ethanol (alcohol) has been shown to have beneficial health effects in humans. These health effects centre on a protective effect of ethanol on the cardiovascular system. The reason for the protective effects of ethanol are not fully understood, but it … Continue reading →

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Wheat Bran Fibre Decreases Iron Absorption

Posted on June 12, 2015 by Robert Barrington

Consumption of iron with a mixed meal creates a pool of iron available for absorption. The rate and total capacity of the gut to absorb this iron depends on a number of factors. Haem iron from animal tissues is well … Continue reading →

Posted in Fibre, Iron, Phytic Acid, Red meat, Vitamin C, Wheat | Comments Off on Wheat Bran Fibre Decreases Iron Absorption

More On Iron Bioavailability: Fibre and Binding Inhibitors

Posted on June 9, 2015 by Robert Barrington

The non-haem iron in plants is poorly absorbed in humans. This relates partly to the iron being in the insoluble Fe3+ form of the mineral, a form that is used by plants for storage purposes. In addition, the iron in … Continue reading →

Posted in Calcium, Digestion and Absorption, Fibre, Iron, Phytic Acid, Vitamin C | Comments Off on More On Iron Bioavailability: Fibre and Binding Inhibitors

More on the Factors Affecting Non-Haem Iron Absorption

Posted on June 5, 2015 by Robert Barrington

Iron is an essential trace mineral required for the transport of oxygen in blood as well as acting as a cofactor to a number of enzymes, most notably tyrosine hydroxylase. Dietary iron originates from two main sources in man. Haem … Continue reading →

Posted in Beans, Digestion and Absorption, Iron, Spinach, Tannins, Vitamin C | Comments Off on More on the Factors Affecting Non-Haem Iron Absorption

Vitamin C Requirement in Smokers

Posted on June 4, 2015 by Robert Barrington

Free radicals are molecules with unpaired electrons, and this makes them unstable and reactive. Free radicals react with stable molecules and in the process electrons are transferred from the stable molecule to the radical. This stabilises the radical but in … Continue reading →

Posted in Antioxidant, Cancer, Cardiovascular Disease, Cigarettes, Free Radicals, Oxidative Stress, Smoking, Vitamin C | Comments Off on Vitamin C Requirement in Smokers

Essential Nutrients: Essential For A Reason

Posted on May 22, 2015 by Robert Barrington

Essential nutrients are so named for a reason. They comprise a group of chemicals that are required to maintain life, but which cannot be manufactured endogenously. In humans, essential nutrients fall into a number of categories including amino acids, organic … Continue reading →

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Free Radical Recycling and The Eye

Posted on May 21, 2015 by Robert Barrington

Free radicals are chemicals that possess an unpaired electron in their outer orbital. This chemical structure makes them reactive and interaction with other chemicals can cause the free radical to gain an electron. Such interactions reduce and stabilise the free … Continue reading →

Posted in Antioxidant, Carotenoids, Chalcones, Eyes, Flavonoids, Free Radicals, Glutathione, Glutathione peroxidase, Inflammation, Stilbenes, Terpenes, Vitamin C, Vitamin E | Comments Off on Free Radical Recycling and The Eye

Antioxidant Supplements: More Evidence They Work

Posted on May 18, 2015 by Robert Barrington

Oxidative stress is associated with the aetiology of many of the Western lifestyle diseases such as metabolic syndrome, cardiovascular disease, obesity and type 2 diabetes. Although an association does not prove a cause and effect, studies with animals and humans … Continue reading →

Posted in Antioxidant, Diabetes, Fructose, Inflammation, Insulin Resistance, Metabolic Syndrome, Obesity, Selenium, Tocopherols, Tocotrienols, Vitamin C, Vitamin E, Weight Loss | Comments Off on Antioxidant Supplements: More Evidence They Work

Black Currant Berries: Vitamin C and Polyphenols

Posted on April 26, 2015 by Robert Barrington

The black Currant plant (Ribes nigrum) is a deciduous shrub with toothed and pointed leaves. Flowers form in loose pendulous racemes in the same axis as the leaves and are greenish-white in colour (figure 1). The black Currant plant is … Continue reading →

Posted in Anthocyanins, Antioxidant, Berries, Flavonoids, Flavonols, Quercetin, Vitamin C | Comments Off on Black Currant Berries: Vitamin C and Polyphenols