Lack of vitamin D can impair your muscle function because it causes muscle cells to produce less energy, according to a study that is published in Journal of Endocrinology. The scientists use their study to argue that one can improve muscle function and reduce age-related loss of muscle strength in seniors by making sure they get enough vitamin D. If your muscles feel weaker during the winter period, you may want to consider taking a supplement.

It has already been documented that the widespread problems with vitamin D deficiency increase the risk of being infected with COVID-19 and developing life-threatening complications. In a new study, a team of Turkish scientists has demonstrated that swift treatment with vitamin D can shorten the length of hospital stays plus reduce mortality risk by 50 percent. What’s more, it even has a positive effect on comorbidity. Vitamin D deficiencies are especially common during the winter period and among seniors, people of color, overweight individuals, diabetics, and other vulnerable groups. This makes the study results very relevant, especially when you consider the fact that vaccines only have a limited effect.

In ancient times when our ancestors hunted, they consumed every inch of the animal – from one end to another. Organ meat such as the liver, the heart, and the kidneys were delicacies that contained far more essential nutrients than other parts of the animal. In Western countries, we primarily consume muscle meat. In addition, animals often get unnatural fodder with suboptimal nutrient content. This results in deficiencies and an imbalance between amino acids and fatty acids. In the following article, you can read more about organ meats (also known as offal), bone marrow, and bone broth and their high content of essential amino acids, vitamin B12, iron, selenium, Q10, calcium, magnesium, collagen, glucosamine, CLA, and other vital nutrients. Also, you can read more about why it makes sense to choose meat from free-range livestock.

Vitamin C is essential for the immune defense for a number of reasons. According to a review of 12 recent studies, vitamin C administered in sufficiently high doses can prevent severe COVID-19 infections and save lives. The problem is that most people fail to follow the official dietary guidelines for fruit and vegetable consumption, which is why so many people lack vitamin C. Another thing is that health authorities in general are unaware of the health benefits of vitamin C in therapeutic doses, even after 80 years of international research.

Overweight is looked upon as a global epidemic with grave consequences for public health. In a new review article that is published in International Journal of Molecular Sciences, scientists look closer at the relation between melatonin and overweight. Primarily known for its role as a sleep hormone, melatonin is also important for the body’s carbohydrate and lipid metabolism. The authors study melatonin’s role in the body’s energy metabolism and in oxidative stress and inflammation, which is known to make overweight bad for your health. They also look at how melatonin affects the circadian rhythm and its role in sleep disturbances and the gut flora that also influence body weight.

Cardiovascular diseases are the leading cause of death and, as it turns out, alarming problems with vitamin K2 deficiency are a contributing factor, according to a new review article that is published in Open Heart. Vitamin K2 regulates the body’s calcium distribution and lack of the vitamin increases the risk of atherosclerosis, arterial stiffness, insulin resistance, and heart failure. Supplementation with vitamin K2 has been seen to improve circulatory health in a number of different ways, and it also has a positive effect on inflammation and type 2 diabetes. Unfortunately, modern diets are not all that rich in vitamin K2 and the problem is made worse by the fact that different types of medicine disrupt the body’s ability to utilize the nutrient.

Impaired sperm quality if one of the major reasons for involuntary infertility. Studies show that oxidative stress, an imbalance between harmful free radicals and protective antioxidants, causes damage to sperm cells. In a review article that is published in Reproductive Sciences, a group of researchers look closer at different molecular mechanisms and how vitamins C, E, selenium, zinc, and coenzyme Q10 plus other antioxidants protect the vulnerable sperm cells.

Both diet and lifestyle affect your risk of developing liver cancer. According to a large population study published in Frontiers in Nutrition, regular intake of fish oil lowers your risk of contracting the disease. In fact, it seems that fish oil has a number of different cancer-preventing mechanisms that even reduce the risk of other types of cancer.

The corona crisis has shed new light on the importance of having a strong immune defense, one that protects us against virus infections in the long run. Selenium plays a vital role for a number of different reasons but, unfortunately, there is widespread deficiency which increases the risk of infections and related complications. In a new review article that is published in International Journal of Molecular Sciences, the authors look closer at selenium’s role in connection with different types of virus infections such as influenza, HIV, and hepatitis with particular focus on COVID-19. The purpose of their article is to inform about new nutritional strategies that may contribute to a strong and well-functioning immune defense – mainly when it comes to COVID-19 and virus types that tend to mutate all the time.