Oh, yes, sorry! You were right!  It really IS beef juice. I did a Google search and beef juice brought up Edgar Cayce's cancer cures.  "Beef juice, used as a medicine in small amount, gives vitality."

There is more info at  www.meridianinstitute.com/reports/cancer.html and www.healingcancernaturally.com/edgar-cayce-perspective.html. 

Here is something I copied out of one of the links above:

  "Since cancer tend to draw upon the vitality of the body, certain specific dietary recommendations were made to address aspect of cancer treatment. Beef juice was the most frequently recommended dietary recommendation for strengthening and increasing vitality.

    As to any strengthening forces, give beef JUICES - ONLY! Sips will be worth more than several spoonsful attempted. (1282-1)

    We would prepare regularly - every other day - about a pound of beef INTO Beef Juice! Not tea, not broth, but the Beef Juice! This would be taken rather often, but in very small quantities; and when taken almost CHEW it - though there is nothing to chew, of course - for it is liquid, but SIP it - when taking it about every two or three hours during the waking period. Take about a teaspoonful at the time, but take at least a minute or more to swallow that much, see? This will give strength, it will assimilate easily, and make for better conditions. Do not allow any fat to be in the beef when it is prepared. Preferably use the beef from the neck of the animal. (875-5)

    Reading 570-1 contains these directions for making beef juice:

    DIRECTIONS FOR MAKING PURE BEEF JUICE

    Put small chunks raw beef in covered fruit jar. Put jar inside pan of water (water coming to about half the depth of jar). Boil until chunks of beef are thoroughly done. Strain. Keep juice in cool place. Dosage: Usually, for an adult, a tablespoonful at meals, diluted with water as a broth - but "very small quantities" must mean about a teaspoonful every two or three hours.)"