Liquigen Liquigen is an emulsion consisting of Approx. 50% MCT oil & 50% water. Liquigen may be used in conditions requiring high energy where fat absorption is impaired & where a high MCT intake is indicated. Liquigen can be used as part of the MCT ketogenic diet & is suitable for use from birth. Liquigen can be used to fortify a wide variety of drinks & foods & is also useful as an energy enhancer in tube & sip feeds. It can be used straight from the bottle or as a milk substitute & can easily be flavoured, e.g. milkshake syrups.