How to Increase Your Energy, 15th century

Getty MS Ludwig XV i, f. 13 (15th c.)

For the evil that is called lethargy. Take your own hair, burnt, mixed with vinegar and a little pitch, and lay that over the nostrils.
Also, swine's dung laid thereto is good.
Also, place the eyes, the heart and the tongue of the nightingale under the pillow, or in the bed, and it shall keep him waking while he lies there, and whoever drinks it, he shall never sleep.  

15th century medical compilation in British Library Sloane 3489, f. 1r-v

The world is an exhausting place. Perhaps you'd like to cover your face with dung, crawl into bed, and never sleep again?

How to Use Chocolate, 1672

Nicolas de Blegny, Le bon usage du thé, du caffé,
et du chocolat (1687)

“It revives the drooping spirits, and chears those that are ready to faint; expelling sorrow, trouble, care, and all perturbations of the minde; it is an Ambrosia: And finally, in a word, it cannot be too much praised… [It] keepeth the body fat and plump; and also preserveth the countenance fresh and fair… and certain it is, that a man may live longer with it, then with any kinde of Wine whatsoever... It is a great Cordial... strengthening the natural heat in all parts, and thereby prolonging life; for it is by an easie transmutation converted into blood. It preserveth in vigour the principal faculties, enabling men to prosecute their Studies and tedious exercises, expelling winde, opening obstructions… and is most excellent against Hypochondriack melancholy.” 

William Hughes, The American Physitian

Revives drooping spirits? Check. Prolongs life? Check. Turns into blood? Apparently.

How to Choose a Sports Drink, 1899

Charles Terront (Le Petit Journal, Sept. 26, 1891)

"The cause of thirst, what best quenches it, what one should not drink, the opinion of the medical profession in regard to the fancy drinks, etc., are all questions which profoundly interest the bicyclist... Of the different fancy drinks, iron tonics, blood purifiers, magic strength-impacters, etc., it is necessary to say very little. Leave them alone, one and all, from A to Z. They are apt to do you more harm than good. It is true the effects of Kola and its class are increased strength, endurance, wind and general well-being, as long as you continue to take them in ever-increasing doses, but when you stop – what then? Collapse... If you require a drink that shall be strengthening as well as refreshing, you can take nothing better than a glass of cool water with a teaspoonful of Wyeth's Beef Juice in it. The nourishment in that will be equal in amount to what is contained in a half-pound of steak."  

Victor Neesen, Dr. Neesen's Book on Wheeling

Looking for a performance-enhancing drink that won't get you in trouble for doping? Try beef juice: so much more convenient than sucking on a steak during the race.