Ingesting them yes but to hold them under the tongue is theoretically way quicker. Just dumpin em down the hatch don't work - they would be ate up by the acids in your stomach before they had a chance. Thats what people arent gettin... ya can't put em on food etc.
Sublingual, literally 'under the tongue', from Latin, refers to a pharmacological route of administration in which certain drugs are entered directly into the bloodstream via absorption under the tongue. Many pharmaceuticals are prepared for sublingual administration. These commonly include cardiovascular drugs, steroids, barbiturates, some enzymes and increasingly frequently, certain vitamins and minerals.