Very few foods contain significant amounts of vitamin D. Fatty fish like Salmon or Herring have the highest concentration in whole food form, but you would need to consume 11 pounds of fish per week to maintain sufficient vitamin D levels. Given that such a whole food diet is clearly impractical, fortified foods like milk were created. However, it would take 270 glasses of fortified milk per week to do the trick. Supplements are currently the only option for raising vitamin D to acceptable levels, but clearly this not the way nature intended humans to get their vitamin D. The long term impacts of supplements are understudied, underestimated, and underreported.



The quality and quantity of sunlight limits vitamin D synthesis in the skin to about 5 months of the year for much of the world’s surface. Once again, nature provided a solution to this problem by making vitamin D fat soluble. Our bodies were designed to make large amounts of vitamin D during warmer months, store the excess in fat cells throughout the body and then slowly release it during the colder months. Taking vitamin D supplement pills in high quantities can overload the storage system, creating dangerously toxic levels of vitamin D that can cause tissue and organ damage. Taking a pill is not the way nature intended humans to get vitamin D.