Patients who take glucosamine for their osteoarthritis have a bonus effect: The preparation also lowers the risk of cardiovascular disease, according to a large population study published in the science journal British Medical Journal. Always choose pharmaceutical-grade glucosamine so you are sure to obtain the desired effect.

- and do not have a clue

Global heating and the whole climate debate have greatly increased the number of vegans and vegetarians. Their intensions may be good, but what they do not know is that their lifestyle can lead to serious health problems. A Spanish study of vegetarians and vegans has shown that 11% of the study participants had subclinical or clinical vitamin B12 deficiency. Earlier studies supporting this finding. Because the problem is insidious, it is often difficult to see the link between the deficiency and the symptoms caused by anemia or disturbances in the nervous system. The lack of vitamin B12 may also increase the risk of impaired fertility and development disturbances in the fetus. It is therefore a good idea for vegans and vegetarians to take a vitamin B12 supplement.

Melatonin is primarily known as a sleep hormone and a powerful antioxidant. According to a new study, melatonin may even improve the condition of rats that have heart rhythm disturbances with an increased risk of heart attack. Melatonin’s ability to improve the heart function is not related to its antioxidant function, however, and that surprised the scientists behind the study. The new study was presented at an annual meeting for the American Physiological Society (APS) in Orlando. Melatonin has several vital functions, but as we age our endogenous production decreases. Not only does this affect our quality of sleep, it also has a negative impact on the heart and the body’s cells.

It is commonly known that fish oil with its high content of the two omega-3 fatty acids EPA and DHA helps prevent atherosclerosis. According to a new international study, it appears to be DHA that has the major effect. This new insight, which has surprised the scientists, is relevant to public health because cardiovascular disease continues to be the leading cause of death.

Get lots of sunlight. It is the richest source of vitamin D. Also make sure to take a vitamin D supplement if, for some reason or other, you are unable to get enough sun exposure – and most certainly during the winter period. Studies show that lack of vitamin D may lead to heart failure due to insulin resistance, which is an early stage of diabetes. In other words, having too little vitamin D in your blood may impair the heart’s ability to take up blood sugar and that can cause a morbid enlargement of the cardiac muscle. This was seen in an Indian study that is published in the journal Molecular Nutrition and Food Research. The scientists see vitamin D as having huge potential in the prevention and treatment of cardiac failure plus insulin resistance and diabetes that is spreading like a bushfire.

Lack of dietary vitamin A increases the risk of skin infections and acne. Science has known for a long time that creams with synthetic vitamin A can be used against various skin problems, yet they do not know how vitamin A really works. Now, a study conducted by scientists from UT Southwestern Medical Center in Texas, USA, reveals the underlying mechanisms by identifying a bactericidal skin protein that requires vitamin A in order to work. But what kind of vitamin is vitamin A really? When does it work optimally? And is there in fact vitamin A in carrots?

Sclerosis, rheumatoid arthritis, certain gastrointestinal infections, and a host of other diseases are so-called autoimmune diseases that occur as a result of the immune defense overreacting and attacking the body’s own tissues. Scientists from the University of Edinburgh in Scotland have now mapped out exactly how vitamin D regulates the immune system. In fact, vitamin D may have a positive effect on autoimmune diseases such as sclerosis. But at our latitude, this provides that we get enough vitamin D from the sun in the summertime and take vitamin D supplements in the winter period. Besides, it is a problem that being overweight both increases the risk of vitamin D deficiency and sclerosis, while lack of magnesium makes it difficult for the body to activate vitamin D.

Omega-3 fatty acids are essential, as they are needed to make cell membranes and support a host of biochemical functions. During pregnancy, there is a particular need for the two omega-3 fatty acids, EPA and DHA to support the growth and brain development of the child. Fish oil is a good source of these two fatty acids, and supplementing with them in the third trimester can prolong the pregnancy and increase birth weight, according to a Scandinavian study published in Journal of Nutrition. The study supports earlier studies of pregnant women, where it has been shown that fish oil lowers the risk of preterm delivery and complications such as development of disorders and death.

Scientists have discovered traces of antibiotic-resistant super bacteria (NDM-1) in the soil of Svalbard. This archipelago is located in the arctic ocean between the North Pole and Norway, several thousand kilometers from India where the bacteria was originally discovered. This is described in a study that is published in the science journal, Environment International. Bacteria with the resistance gene NDM-1 have now spread to a number of other countries and many people have lost their lives to them. Humans are also challenged by other antibiotic-resistant bacteria, and the British health authorities consider this to be a larger threat to humans than climate change. But what causes these bacteria to develop resistance? And what vitamins and minerals are particularly important for bolstering the immune system? After all, our immune defense is our only way of protecting ourselves if antibiotics fail to work.