Elizabeth lends her advice to KABC Los Angeles:

With no obvious indicators we’re deficient, it is a silent crisis. Dietitian Elizabeth Somer points out who among us is more at risk.

“As we get older we get less and less efficient at making vitamin D,” said Somer. “Most of us wear sunscreen because we’re concerned about getting skin cancer. So as you get older, if you’re skin is dark, if you wear sunscreen or your indoors a lot, it’s just a given you’re going to be vitamin D deficient.

View the video here.