A deficiency describes a lack of a particular nutrient and can be a sign of malnutrition caused by not eating the correct balance of food. Examples of nutrient deficiencies are anaemia (iron, folate or vitamin B12 deficiency) and rickets (caused by lack of vitamin D and calcium). Usually a blood test can identify if the body is lacking in a particular nutrient, but signs such as fatigue and changes in mood and body weight can also be signs.

What to read next

Live Steps from Eisenhower Metro — Now Leasing!

Luxe apartment living that blends the best of city living and the beautiful outdoors, with a rooftop pool and lounge, dog grooming station and more.

Your Frozen Fan Won't Want to Let it Go

Find Elsa, Olaf, and all your favorite Frozen characters on Campbell's soup cans in a store near you!

Ryan Homes at Poplar Run-Now Open!

New Luxury single-family homes from the low $600s in a superb Silver Spring location. Wooded homesites with incredible luxury features included!

Become a Part of the Official Clinton Campaign

Add your name to join the official Clinton campaign and become a part of history.

VA Mortgage Rates In 2016

VA Rates as Low as 3.25% (3.405% APR) 30 Year Fixed. Exclusive For Veteran & Military Takes 1 Min!