vitamin A

This fat-soluble vitamin helps keep your eyes healthy, supports immunity, fights free radicals, and is critical for fetal development.

Recent measles outbreaks have reignited discussions about the vaccine. But does a vaccine resolve the problem, or are there more effective ways to prepare?

In addition to genetics and individual constitution, environmental factors play a significant role in the modern prevalence of nutrient deficiencies.

It’s important to maintain optimal levels of nutrients, particularly vitamins A, C, and D—especially during an illness.

Historically, the diets of healthy nonindustrialized peoples throughout the world varied according to climate and terrain—but all of them can be described as nu