Did you take your vitamins this morning?

It's hard to believe we're living in the year 2018.

And if you're like me -- old enough to remember a time when the 21st century sounded far-off (and "far-out") -- that means that you've got decades of memories under your belt.

You're RICH in experience... but no matter how far science has advanced, you may still be LACKING in a few key vitamins!

According to a new pair of studies, that's because as the years pass, you could enter a "danger zone" for deficiency in the all-important vitamins D, B12, and K.

In the first study, which came out of Germany, researchers drew blood samples from over 1,000 older adults and analyzed them for levels of vitamin D and B12.

It turned out that 1 in 4 participants wasn't getting enough vitamin B12, which is essential for everything from nerve function to brain health to your body's formation of red blood cells.

And when it came to vitamin D, the outlook was even grimmer: Over HALF of the participants lacked enough D, which is crucial for strong bones, a sturdy immune system, and even blood sugar control.

In the second study, out of the Netherlands, researchers analyzed the blood levels of over 4,000 people for another bone-strengthening nutrient: vitamin K.

Half of the older folks in the study lacked enough K, as did those with conditions like high blood pressure, diabetes, kidney disease, and cardiovascular disease.

What's more, after following the participants for 10 years, researchers also found that those who were deficient in vitamin K were more likely to die from cardiovascular disease.

In fact, they were more likely to die from any other cause, too!

That may be because vitamin K plays a role in keeping your arteries flexible and preventing the "calcification" that can stiffen them.

Now, it's true that adopting a healthy approach to eating like the Paleo diet -- which includes nutrient-dense foods like meat, egg yolks, and leafy greens -- can supply a steady stream of these essential vitamins.

But as we age, your body can struggle to absorb nutrients from your food and -- in the case of vitamin D (a.k.a. the "sunshine" vitamin) -- even from sunlight.

Luckily, all you may need to do to get what you're lacking is take a good daily multivitamin.

But since "mainstream" recommendations of how much of these vitamins you need are often WAY too low, talk to a doc who's well-versed in integrative medicine about the right dosages for you.

You don't want your levels to just squeak by at the bare minimum. You want them to be OPTIMUM!

And if you've got a vitamin B12 deficiency, the best way to correct it may actually be to get injections, which I've used on hundreds of patients.