Fat is part of a heterogeneous group of compounds known as the lipids.

Ferrous Sulfate

We’re sorry no definition is currently available for this ingredient. If you would like to discuss this ingredient or have any other questions, please contact one of Natura’s knowledgeable Product Advisors at 800-532-7261 between 8 a.m. and 5:30 p.m. (CT) or email us. Thank you.


Fiber consists indigestible plant carbohydrates, including cellulose, hemicellulose, and gums.

Fish Broth

Fish broth is obtained by cooking fish and/or other marine animal products, including bones, shells, parts, and/or muscle, but not including fish soluble.

Fish Oil

Fish oil is the oil from rendering (cooking down) whole fish or pieces of fish from canneries.


Flaxseed is the whole seed of the flax plant.

Flaxseed Meal

Flaxseed meal is the ground product obtained from the seed of the flax plant.

Flaxseed Oil

Flaxseed Oil is obtained by extracting oil from the seed of the Flax (Linseed) plant.

Folic Acid

Folic acid is a Vitamin of the B complex that is water-soluble and essential in animal metabolism.