Food Ferrin was an iron supplement produced by Battle Creek Food Co. It contained iron extracted from a mixture of iron-rich greens, and purportedly contained as much iron as one pound of spinach.
Savita was a savory seasoning made of yeast and vegetable extracts produced by the Battle Creek Food Co. Similar to nutritional yeast, it was marketed to aid in digestion. A fully vegetarian supplement, it was in line with the pro-vegetarian stance of J. H. Kellogg and the Battle Creek Sanitarium.