Post was an American breakfast cereal manufacturer. In the 1880s, while being treated by John H. Kellogg at a health sanitarium, he developed an interest in producing healthful foods like those served by Kellogg. In 1891, he established La Vita Inn, an institute for healing by mental suggestion. After experimenting with breakfast foods, he invented Postum, a coffee substitute after which he named his company, Postum Cereal Co., the precursor to General Foods Corp. What cereals did Post invent? Discuss
Source: The Free Dictionary