This section is from the book "Mrs. Rorer's Diet For The Sick", by Sarah Tyson Rorer. Also available from Amazon: Mrs. Rorer's Diet For The Sick.
The edible portion of this plant is the long tap root. It may be used in cases of prolonged feeding for the obese, and where continued meat diet is ordered. The aromatic principles which give flavor to horseradish help to make the meat more appetizing.
It is usually grated and covered with vinegar. Grated and mixed with cream, however, it makes a much better condiment.
Use it sparingly; beware of the condiments that "bite."
 
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