Typically, lecithin and fish oil pills are fat-soluble vitamins, and if taken once a day, it is recommended that they be taken at night before bed for best results. However, fat-soluble vitamins such as lecithin and fish oil pills must be taken through fatty foods as a carrier in order for fish oil pills and lecithin to achieve the best and maximum bioavailability and absorption. Therefore, it is usually recommended to drink 200ml of warm milk before taking lecithin and fish oil pills before going to bed to avoid the irritation of the capsule wall on the gastrointestinal mucosa. Drinking milk and then taking lecithin and fish oil pills can release the fat content of the milk and break down the lecithin and fish oil pills for maximum bioavailability.