Several studies have shown a direct link between depression and lack of vitamin D, both of which are common problems. Vitamin D has numerous functions in the brain and nervous system and it helps counteract local inflammation that is often seen in connection with depression. According to a new Finish meta-analysis, high-dosed vitamin D supplementation can even ameliorate symptoms of depression. The question is how to optimize blood levels of the nutrient in order to prevent the disease.

Air pollution is a serious health threat that affects the entire world. Previous studies show that it increases the risk of cardiovascular disease, among other things. We need new strategies for protection, and a recent Chinese study conveniently reveals that supplementation with vitamin C can protect the cardiovascular system against oxidative stress and other harmful impacts from air pollution. What we need to find out is how much vitamin C it takes to obtain a therapeutic effect.

Lack of vitamin D is a global health problem that increases mortality rates. At this point, many studies have shown that having adequate amounts of vitamin D in the blood can lower your risk of cardiovascular disease, which is the leading cause of death. In a new review article that is published in Nutrients, the authors look closer at vitamin D supplementation to see if it can prevent stroke and speed up rehabilitation. It is essential that vitamin D supplements have good bioavailability so they can optimize blood levels of the nutrient.

Many people suffer from chronic inflammation, which sets the stage for a host of diseases such as asthma, type 2 diabetes, atherosclerosis, depression, cancer, rheumatoid arthritis, and other autoimmune diseases. The presence of chronic inflammation may also make infections such as coronavirus and influenza potentially life-threatening by derailing the immune defense. According to a new study from the University of South Australia that is published in International Journal of Epidemiology, it appears that vitamin D can inhibit inflammation by way of different mechanisms, thereby reducing the risk of a variety of diseases and even premature death. The need for vitamin D varies from person to person. Also, it is essential to make sure that blood levels of the nutrient are optimal and that vitamin D is properly activated in the body.

- and other types of organ damage

Vitamin K occurs naturally in different forms. The vitamin is primarily known for its role in blood coagulation, but a team of German scientists has found a new type of vitamin K. This form serves as a very particular type of antioxidant that counteracts cell death caused by a process called ferroptosis. Because ferroptosis is involved in the development of Alzheimer’s disease, acute organ damage, and other diseases, the researchers see a whole new potential for vitamin K in the prevention and mitigation of ferroptosis-related ailments. Earlier studies even suggest that selenium-containing antioxidants also protect against cell death caused by ferroptosis.

Chromium is primarily known for its role in insulin utilization and blood sugar control. However, chromium is also important for macronutrient metabolism and the circulatory system. Chromium’s role in health has been debated and a group of scientists have looked closer at the link between low blood levels of chromium and global health burdens such as cardiovascular disease, type 2 diabetes, and depression. How do we get enough chromium from the diet and what supplements have the highest bioavailability?