If the chromic acid oxidation is performed with stoichiometric oxidant in the presence of diethyl ether as co-solvent (a method introduced by H.C. Brown), the epimerization of l-menthone to d-isomenthone is largely avoided.
Apple cider vinegar isn't likely to be effective for weight loss. Proponents of the apple cider vinegar diet claim that drinking a small amount of apple cider vinegar before meals or taking an apple cider vinegar supplement helps curb appetite and burn fat. However, there's little scientific support for these claims.
While its weight loss benefits are discussed widely, they have not been proven. Apple cider vinegar, or ACV, may lower blood pressure when consumed daily as a capsule or as a liquid mixed with distilled water. High blood pressure, also known as hypertension, is a common condition in which the force or pressure of blood against the artery walls is abnormally high.