A billion people are not taking in enough vitamin D

The difficulty of making sure you ingest all the recommended daily vitamins and minerals can be a hassle and a nuisance for some. As a result, the "multivitamin" was developed. Now, that's a billion-dollar industry.

However, taking certain vitamins in the correct proportions for metabolistic synergy is something I rarely see reported on, but I believe it's just as important as actually taking vitamins and minerals. Unfortunately, one vitamin is not getting into the diets of over a billion people worldwide.

Vitamin D deficiency continues to be a worldwide issue, and with the amount of vitamin D in many supplements I've inspected, that's no surprise. There is one free source many people know about, and it's sun exposure. The sun is not bad (unless you overexpose yourself), and it can stimulate natural vitamin D production easily. Ever wander outside for about 10 minutes with a lot of exposed skin and a shining sun?