Vitamin and Mineral Guide


Need more calcium in your diet? Learn all the calcium basics: mineral benefits, dosage information and which foods are calcium-rich. Read More >>


Want to know more about chromium before you add the mineral to your diet? Learn about chromium's benefits, which dosages are best and where to find it. Read More >>


Get information about the benefits of copper, dosages and where to find it in foods. Read More >>


Known in supplement form as “folic acid,” folate promotes healthy cell growth; aids in the form-ation of genetic material in cells; prevents changes to DNA that may lead to cancer; and regulates homocysteine levels. Read More >>


Avoid an iron deficiency by making sure you have the right amount of iron in your diet. Get information about the benefits of iron and which foods are iron-rich. Read More >>


Magnesium strengthens bones; maintains nerve and muscle function; regulates heart rhythm and blood sugar levels; and helps maintain joint cartilage. Read More >>


Selenium is an antioxidant, helping to prevent free-radical damage. It is also essential for proper functioning of the thyroid gland and immune system. Learn more about selenium. Read More >>


In today's world of high-salt diets, does anyone need to add more sodium? Get more information on sodium: its benefits and how much you need. Read More >>

Vitamin A

Vitamin A is an antioxidant that maintains the immune system; protects eyesight; keeps skin and tissues of the digestive tract and respiratory system healthy; and supports bone growth. Get more benefits, dosage information and facts about vitamin A. Read More >>

Vitamin B-1

Also called thiamine, vitamin B-1 converts glucose to energy. It is essential for normal functioning of the heart, brain, nervous system and muscles. Read more about vitamin B-1. Read More >>

Vitamin B-12

Vitamin B-12 is essential for normal brain and nervous system function; and it helps make red blood cells and DNA. It also forms the genetic material in cells; produces energy; and converts folate to its active form. Read More >>

Vitamin B-2

Also called riboflavin, vitamin B-2 converts glucose to energy; may help prevent migraine headaches and cataracts. Get information about the vitamin's benefits and more. Read More >>

Vitamin B-3

Known as niacin, vitamin B-3 helps with producing energy from food and keeps skin, nerves and digestive system healthy. Find out more about vitamin B-3. Read More >>

Vitamin B-6

Vitamin B-6 is needed in more than 100 chemical reactions in the body and for forming amino acids, red blood cells, vitamin B-3 and antibodies. Learn more important facts about this vitamin including dosage, foods and more. Read More >>

Vitamin C

Vitamin C is an antioxidant. It protects cells from free-radical damage; builds and maintains collagen and connective tissue; improves iron and folate absorption; and helps wounds heal. Learn how much is needed, drug interactions and more. Read More >>

Vitamin D

Vitamin D builds and maintains strong bones; aids with calcium absorption; helps prevent osteoporosis; and helps regulate cells responsible for autoimmune functions. Get full facts on Vitamin D and how to incorporate it into your diet. Read More >>

Vitamin E

Vitamin E acts as an antioxidant, helping protect the body from free radicals, which are compounds that can damage the body. Vitamin E also supports the immune system and helps make red blood cells. Read on to find out more. Read More >>

Vitamin K

Vitamin K aids with blood clotting; helps build and strengthen bones; and prevents calcium buildup in arteries. Get the details on vitamin K including dosage information and drug interactions. Read More >>


Zinc is involved in wound healing, cell reproduction and tissue growth, sexual maturation, and taste and smell. It is also associated with more than 100 enzymatic reactions in the body. Learn what foods are rich in zinc, how much you should consume and more. Read More >>

Where Does It Hurt?

Back & Neck

The spine runs from the back of the neck to the lower back and can be painful and stiff from problems such as arthritis and muscle stress.


These ball-and-socket joints move in almost all directions. Shoulders are prone to arthritis injury and fracture.


Elbows can be affected by arthritis and repetitive use that can mean ongoing pain and stiffness.


These ball-and-socket joints move in almost all directions. Arthritis and osteoporosis can mean pain, stiffness or fracture.

Wrists, Hands & Fingers

Wrist, hand and finger joints are among the most important joints for performing daily activities.


The largest joints in the body, like the knees, are vulnerable to injury and arthritis.


The ankle is a complex joint with many moving parts, making it vulnerable to injury and arthritis.

Foot, Heel & Toe

As the foundation of the body, feet bear the brunt of the weight. Arthritis and impact-related injuries are common in feet.

Lookup by Body Part
  • Just click on the body part that’s in pain
  • Learn about this body part, what can go wrong, and how to care for it
Predict Your Joint Pain
weather icon

Predict your joint pain level based on the local weather.