In Western countries, vitamin D deficiency is extremely common. This article discusses some of the symptoms and causes of vitamin D deficiency, as well as treatment options.

The study of abnormal behavior, psychopathology, and psychological disorders is the focus of abnormal psychology. However, psychologists disagree on how to define the term "abnormal."

The Mediterranean diet emphasizes whole foods and plenty of fruits and vegetables. Learn more about the advantages and see a sample meal plan here.

A paleo diet consists of eating only foods that were available during the Paleolithic period, when humans hunted and gathered all of their food. Find out more about it.

Gluten-free diets are becoming increasingly popular. This article discusses the risks and benefits of a gluten-free diet, as well as which foods to eat and avoid.

Plant-based Diet: a Health and Nutrition Guide

The DASH diet's primary goal is to control blood pressure, but it can also help people maintain their weight and improve their overall health. Learn what to eat on this diet.

Vitamins A, D, E, and K are fat-soluble. This article examines some dietary sources for each, as well as the roles they play in the body.