Thermophiles were the first extremophiles to be discovered. The domain archaea consists of extremophiles and many eukaryotes are also known to live in such harsh environments. There is also prosperity of organisms and unique living organisms, known as tube worms, growing around deep sea hydrothermal vents.
ALA is an antioxidant. Antioxidants protect against damage to the body's cells. There are food sources of ALA such as yeast, organ meats like liver and heart, spinach, broccoli, and potatoes. However, ALA from food does not appear to produce a noticeable increase in the level of free ALA in the body.
ALA or Alpha linolenic acid: While DHA, EPA, and DPA are found primarily in fish, ALA is found in the highest compositions in plant oils like flaxseed oil. It can also be found, though sometimes only in trace amounts, in oils such as canola, soy, and walnut oils.