In a matter of four months only, large doses of vitamin D were able to reduce arterial stiffness in young, overweight but otherwise healthy Afro-Americans, according to a study from Georgia, the United States. The study also showed that those participants, who only took the officially recommended quantities of vitamin D, had increased arterial stiffness. This suggests that the official vitamin D recommendations are too low to prevent stiff arteries and atherosclerosis. Another thing is that dark-skinned people living at northern latitudes, overweight individuals, older people diabetics, and those who overuse sun screen are at increased risk of synthesizing too little vitamin D.

Selenium is a constituent of at least 25 essential proteins (selenoproteins), including several antioxidants that protect cells against oxidative stress and disease. A team of researchers from Munich in Germany has mapped out the mechanisms, which the selenium-containing antioxidants use to protect neurons in the brain against cell death. The scientists see a whole new potential with selenium because of its ability to protect against neurological disorders and cancer. It is problematic, however, that we have widespread selenium deficiency in our part of the world. Even if you stick with the official dietary guidelines, it is very difficult to get enough selenium to saturate all the different selenoproteins.

Type 2 diabetes and early stages of the disease such as insulin resistance are spreading like a bushfire. The good news is that if you consume many antioxidants from fruit, vegetables, berries, tea, and dark chocolate and limit your intake of alcohol, you can lower your risk diabetes risk. This was shown in a new study that is published in the European journal Diabetologia, which focuses on diabetes research.

Early stages of psychotic diseases such as schizophrenia are associated with deficiencies of specific nutrients like vitamin D and folic acid, according to a new Australian study. The researchers also point to new ways of preventing and treating psychotic disease, which affect millions of people worldwide.

- and some good dietary advice

AMD (Age-related Macular Degeneration) is a common eye disease that impairs your reading vision in particular. High-dosed supplementation with vitamin C, vitamin E, zinc and other antioxidants has been shown to help. The recommendation of these nutrients is based on documentation from a large American research project and demonstrate that normal recommendations (DRI = Daily Reference Intake) are inadequate as treatment for various disorders. There are also different foods that are highly relevant for preventing AMD or as part of a treatment against the condition.

- which is why we need enough vitamin C, selenium, and other antioxidants

Modern man is exposed to a lot of free radicals because of factors like stress, environmental toxins, etc. Free radicals are like “internal terrorists” that contribute to atherosclerosis, diabetes, Alzheimer’s disease, cancer, and a host of other diseases. Our only protection against free radicals are antioxidants from vitamins, minerals, and plant compounds. Antioxidants work in different ways. Being deficient in a single primary antioxidant such as selenium may leave the body vulnerable to oxidative stress and disease. What most people are unaware of is that free radicals are also essential, as they are a part of our energy turnover and immune defense. The question is how do we protect ourselves the best against infections, oxidative stress, and disease? What type of antioxidant do we get from dark chocolate, green tea, coffee and red wine? How does redox therapy with vitamin C in great quantities work on cancer patients? You can read more about these topics in the following.

Scientists from Alberta University in Canada have observed that lack of sunlight may contribute to the weight increase that many people experience during the winter period. This is because our fat cells are sensitive to sunlight. Lack of sunlight may also result in poor sleep and low levels of vitamin D, a nutrient that has other metabolic functions.

- and the upper safe limit makes no sense

There really is no need to have an upper safe intake limit for folic acid, and we ought to enrich flour with this nutrient to prevent children from being born with potentially disabling or life-threatening brain or spinal cord defects. This is part of the conclusion of a new study from Queen Mary University of London, and it supports an earlier study from Aarhus University in Denmark. Folic acid deficiencies, which are rather common, may lead to fatigue, poor memory, dementia, and a number of other health problems later in life. It is therefore important that we focus on this essential nutrient.