Glaucoma is a serious eye disease that is often detected too late. In worst case, it can lead to blindness. A Swedish study from Karolinska Institutet, published in Cell Reports Medicine, shows that supplementation with various B vitamins can improve the metabolism in the eye, which may slow down the deterioration of the optic nerve. It is also important to get enough of the different B vitaminsif you want to prevent the condition.

- and vice versa

All the different B vitamins are of vital importance to our energy levels, nervous system, skin, hair, and health in general. Our daily diet is the primary source of the vitamins but the intestinal flora is able to synthesize, consume, and compete for vitamin B in the host. Interactions between the body and the gut flora is therefore important for how we absorb and utilize the different B vitamins. On the other hand, lack of B vitamins or supplementation with B vitamins can also affect our gut flora, according to a review article that is published in Frontiers in Nutrition.

Lack of vitamin B12 and folic acid increases the risk of Alzheimer’s disease, which is because these B vitamins regulate blood levels of homocysteine that must be below a certain threshold. Apparently, men and women react differently to B vitamins and folic acid with regard to cognitive functions, according to a study that is published in Nutrients. The risk of developing Alzheimer’s disease is also lower among younger people and among those who drink tea or coffee. Unfortunately, many older people lack these particular B vitamins because of poor diet habits, low stomach acid, or the use of various medical drugs.

The B vitamin biotin reduces neurological brain damage that is caused by manganese and resembles Parkinson’s disease. Although manganese is an essential mineral, excessive intake can act as a neurotoxin. However, according to a study published in Science Signaling, biotin appears to have a therapeutic effect on Parkinson-like symptoms by promoting the production of the neurotransmitter dopamine, which is important for the nervous system and mood.

Several B-vitamins need to be converted into other forms before they are activated for a wide range of functions. However, enzyme defects, alcohol, medication, and aging processes can make this difficult. The form of vitamin D that we produce from the sun or get from supplements is also inactive, and factors like obesity, aging processes, and a lack of certain minerals can make it difficult to make the active form. Conversion of vitamin K1 into vitamin K2 requires a well-functioning gut flora. Optimal utilization of Q10 requires a specific selenium compound. This means that an inability to activate vitamins and Q10 can result in chronic fatigue, many serious diseases, and in the worst case, early death.

Choline is one of the B vitamins and is necessary for our central nervous system, energy turnover, lipid metabolism, and many other functions. It appears to be a somewhat forgotten nutrient, and science now links choline deficiency to Alzheimer’s disease and cardiovascular diseases, according to a study that is published in the journal Aging Cell.

Most people have experienced a normal headache, while migraines are far more complex. Although the pain can be caused by a number of factors, essential nutrients such as B vitamins, vitamin D, magnesium, fish oil, and coenzyme Q10 may play a vital role according to a review article that is published in Current Pain and Headache Reports. The authors describe how certain nutrients affect underlying mechanisms that may prevent or mitigate different types of headaches.

Irritable bowel syndrome is a widespread condition that is characterized by pain and gastrointestinal discomfort with varying degrees of diarrhea and constipation. There can be a number of underlying causes, but diet plays a major role. Also, there is evidence that being deficient in B-vitamins, vitamin D, magnesium, calcium, iron, and zinc may be a contributing factor. In addition, strict dieting as part of the disease management may result in nutrient deficiencies, according to a review article that is published in Gastroenterology and Hepatology.

Biotin, one of the B vitamins, is essential for numerous metabolic processes, and a biotin deficiency may be associated with inflammatory bowel disease (IBD). According to a new study that is published in Nutrients, a biotin deficiency can also have a negative impact on the intestinal flora and result in a suppression of symbiotic bacteria and a replication of harmful, dysbiotic bacteria. The scientists say that a disrupted gut flora caused by a biotin deficiency may contribute to inflammatory bowel disorders.

There are around 750,000 people in Denmark who take several medical drugs per day, and the number of users is on the rise. What many people are unaware of is that different drugs can disrupt the body’s ability to absorb or utilize one or several nutrients, especially things like B vitamins, vitamin C, vitamin D, vitamin K2, magnesium, potassium, calcium, zinc, iron, and coenzyme Q10. It is therefore vital to get sufficient amounts of the mentioned nutrients to reduce the risk of adverse effects.

Migraine is one of the most widespread neurological diseases, and it turns out that diet and lifestyle play a significant role. Supplementation with magnesium, vitamin D, Q10, vitamin B2, alpha-lipoic acid, and probiotics may relieve migraines or reduce the number of migraine days, according to a new meta-analysis published in Neurological Sciences. It is also essential to identify which nutrients the individual migraine patient lacks and aim at taking supplements that optimize blood levels of these substances.

Strong bones require minerals such as calcium and magnesium. It is also known that vitamin D plays a role in calcium absorption, and deficiencies are common among the elderly. Furthermore, deficiencies in vitamin A, folic acid, and vitamin K appear to be much more widespread among elderly patients with bone fractures compared to healthy control groups. This is highlighted in a new study published in Frontiers in Nutrition, where the researchers take a closer look at the importance of vitamins for bone health.

Metabolic syndrome, which is an early stage of diabetes, is spreading like a bushfire. This condition is characterized by overweight, hypertension, hypercholesterolemia, and disrupted blood sugar metabolism. The diet plays a major role, and scientists have found a direct link between the intake and serum levels of vitamin B6, folic acid (vitamin B9), and vitamin B12, according to a large American population study that is published in JAMA Network Open. The authors also address how these B vitamins can help improve the glucose metabolism and prevent metabolic syndrome.

There is a close link between imbalances in the gut flora and the development of Parkinson’s disease, according to a Japanese study where scientists observed that patients with Parkinson’s disease lack certain gut bacteria that are related to the synthesis of riboflavin (vitamin B2) and biotin (vitamins B7 and B8). This results in a reduced presence of certain compounds that normally counteract leaks in the intestinal mucosa, so toxins can enter the bloodstream and reach the brain. According to the researchers, supplementation with these B vitamins may help restore the intestinal mucosa and can be useful in the prevention and treatment of Parkinson’s disease.

Glioblastoma is a the most common type of brain tumor and is very aggressive. Existing therapies are not all that effective and most people die within a few years after being diagnosed with the disease. It is essential to have more focus on prevention, and diet plays a major role. According to a Chinese population study, vitamins B1, B2, B3, and B9 (folic acid) are associated with a reduced risk of developing glioblastoma. The scientists mention the different B vitamins and their role in brain health and cancer prevention and stress the importance of knowing about the factors that inhibit the body’s uptake and utilization of these vitamins.

Refined foods and poor dietary habits are the reasons why billions of people in the world lack essential nutrients like B vitamins, vitamin C, vitamin E, calcium, magnesium, iodine, iron, selenium and zinc. This catastrophic nutrient crisis, which even affects people in the western world, contributes to infections and pandemics, impaired fertility, poor quality of life, chronic diseases, and early death, according to a study that is published in The Lancet Global Health. The study authors call their results very alarming and believe that it is necessary for health authorities to take action now to improve public health. There is also a problem with lack of vitamin D and omega-3 fatty acids, even though they were not included in the study.

Type 2 diabetes is spreading like a bushfire and is the major cause of vision loss, kidney failure, heart attacks, strokes, and leg amputations. Many people have insulin resistance, the early stage of type diabetes that is associated with fatigue, untimely hunger, and increasing weight. The diet plays a major role and according to a new review article that is published in Human Nutrition and Metabolism, various B vitamins, vitamin D, vitamin K, vitamin E, and zinc influence insulin resistance and diabetes treatment. Previous research has also shown that chromium and magnesium play a role in insulin resistance and blood sugar regulation.

Vitamin B12 is important for the development and function of our central nervous system. In the past decades, science has also found similarities between sclerosis and the neurological symptoms that occur in people who lack vitamin B12. In a new study that is published in Cell Reports, scientists have found the molecular relation between vitamin B12 and the function of supportive brain cells.

Vitamin B3 deserves a lot more attention because of its key role in cellular energy metabolism, the brain and nervous system, our mental health, and our circulatory system. In the cellular powerhouses, we find the derivate form of B3 called NAD, which gives an energy boost. According to a study published in StatPearls, studies suggest that vitamin B3 lowers the risk of Alzheimer’s disease, Parkinson’s disease and other neurological disorders, rheumatoid arthritis, muscle atrophy, and various cancer forms. Many people have an increased need for the nutrient due to factors such as ageing, genetic variations, and poor utilization of the vitamin.