The 5 Most Common Deficiencies In The USA

1- Vitamin D
How to get it: Natural sunlight and supplementation
2- Vitamin K2
How to get it: Full fat grass-fed animal protein, grass-fed butter
3- Iodine
How to get it:  Seafood and seaweed, eggs, strawberries, yogurt
4- Magnesium
How to get it:  Kelp, seaweed, cocoa (dark chocolate), spinach, halibut, bone broth & supplementation
5- B 12
How to get it:  Full fat grass-fed animal protein, grass-fed butter, raw dairy, supplementation (methylcobalamin)

Note:  Avoid synthetic vitamin/mineral supplements as they can irritate the body and this leads to low absorption; choose whole-food based supplements.  For your foods, stay away from grain fed animal protein as much as possible and choose hormone-free, antibiotic-free, organic  grass-fed products.