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.
Pregnancy and breast-feeding: Not enough is known about the safety of using apple cider vinegar as medicine during pregnancy and breast-feeding. Stay on the safe side, and donât use it. Diabetes: Apple cider vinegar might lower blood sugar levels in people with diabetes. Therefore, blood sugar levels need to be monitored closely. Dose adjustments may be necessary for diabetes medications that are taken.