The good news is that there is a lot you can do today to take action for your health. Research suggests that genetics account for only about one-third1 of autoimmune disease factors. Environmental triggers, diet and lifestyle may also be responsible. Why? Researchers seem to think it has to do with our dendritic cells. These alarms of the immune system can send out a “red alert” to stimulate immunity, or a “calm down” message that tones down excessive immunity that can damage the body. The “calm down” message makes use of vitamin A. True vitamin A, what’s called retinol, is only found in animal products like fish, shellfish, fermented cod liver oil, liver and butterfat from grass-fed cows. Plant carotenes, a precursor to vitamin A, are found in sweet potatoes and carrots but the conversion rate to the usable retinol is very weak. In fact, research suggests that just 3% of beta-carotene gets converted in a healthy adult. For example, Th17 cells are helper T cells that produce a number of inflammatory chemicals, such as interleukin-17. With autoimmune conditions — such as inflammatory bowel disease, multiple sclerosis, psoriasis and rheumatoid arthritis — Th17 cells are out of control. But Vitamin D, in conjunction with Vitamin A, has been shown to synergistically dampen the Th17 inflammatory response. As with vitamin A, vitamin D is most abundant in animal and dairy fats. But soaking up some time in the sun can also help — about 20 to 60 minutes a day, depending on your complexion. And consider getting tests done every few months to ensure your vitamin D levels are healthy. Unfortunately, K2 is one of the most common nutrient deficiencies in the western diet. Vitamin K2 is best paired with the other fat-soluble vitamins, A and D, in whole food form like grass-fed butter oil (ghee), or organ meat. Natto, a Japanese superfood made from non-GMO fermented soybeans, also has high levels of K2. It’s critical to first deal with the underlying problem that’s causing the iron deficiency. Healing of the microbiome is essential for healthy nutrient absorption, especially iron. Once the gut is healed, iron-rich foods like grass-fed beef, liver and spinach can be effective, as well as cooking with cast iron cookware. These micronutrients are needed for the healthy production and conversion of the thyroid hormone — and thyroid problems such as Hashimoto’s disease are some of the most common autoimmune conditions. A variety of nuts and seeds like Brazil nuts, as well as oysters, are good sources of these nutrients. When it comes to managing autoimmune diseases, you should always consult your doctor, but checking in on these nutrients may help. A cutting-edge nutrition deep dive taught by 20+ top health & wellness experts