3. Vitamin K2
Vitamin K2 is one of the most common nutrient deficiencies in the western diet. A study published in the Journal of Neuroimmunology found that Vitamin K2 was effective at inhibiting the pro-inflammatory iNOS in the spinal cord and the brain immune systems – a gene under he control of a variety of inflammatory mediators. Vitamin K2 is best paired with other fat-soluble vitamins such as A and D. It can be found in grass-fed oil and a Japanese superfood made from soybeans, called Natto.