Spirulina is a blue-green edible algae you'll likely find in a powdered form, packed with a number of health benefits you'll want to try for yourself. You may have noticed the protein-packed ...

Learn about the potential downsides of these popular green supplements made from algae, including potential side effects and contamination concerns.

Add Yahoo as a preferred source to see more of our stories on Google. Blue smoothies are all the rage right now, according to social media. (Getty Images) (Westend61 via Getty Images) If you’ve ...