What is vitamin K? Vitamin K is a family of compounds, most famously known for their role in blood clotting. However, their...

What is cod liver oil? As the name implies, it is extracted oil from the livers of cod fish. What are the claimed benefits? Reduces...

Phosphatidylserine (PS) is a type of fat naturally produced by the body and consumed in small amounts in foods. Your body makes all the...

What is vitamin D? A fat soluble vitamin that is produced in the skin when exposed to ultraviolet sunlight (see caveats below). What are...

What are B-vitamins? A family of eight vitamins: B1: Thiamine B2: Riboflavin B3: Niacin B5: Pantothenic Acid B6: Biotin B9: Folate B12:...

What are omega fatty acids? Fatty acids are types of dietary fats that are important for many aspects of your health. Omega-3s and...

Glycine is an amino acid (protein) and neurotransmitter. Melatonin is a hormone. In healthy persons with adequate nutrition, both are...

Collagen is a protein that provides the matrix (framework) for your tissues. While scientists are still learning more about the human...

Having a snack before and/or after a workout is touted as beneficial by many health professionals, supplement companies and media outlets...

What are food sensitivities? Food sensitivity is not an official medical diagnosis, but the term is often used to refer to an adverse...