In order to get the best possible benefit from nutritional supplements, it is worth paying attention to their timing. In the following, I will go through some of the most common dietary supplements and their optimal times. Vitamin D should always be taken with breakfast. For some, vitamin D can weaken the secretion of melatonin, and thus make it difficult to fall asleep - or reduce the quality of sleep. Remember that vitamin D is a fat-soluble vitamin (or actually a hormone), and it requires enough fat to be absorbed, so make sure your breakfast contains, for example, nuts, avocado, almonds or coconut oil. Likewise, zinc should always be taken with breakfast. Zinc can have a slightly stimulating effect on some people. Vitamin C can also be mildly stimulating for sensitive people, so it should also be taken in the morning/afternoon Magnesium, on the other hand, should be taken in the evening, before going to bed. Magnesium is relaxing, so it can help you fall asleep and improve the quality of your sleep. Calcium should also be taken in the evening. Lactic acid bacteria should be used several times a day. Please note that boulardii is the only strain that can withstand heat. All other lactic acid bacteria should therefore be consumed either on an empty stomach or with a meal where you do not eat hot food. Collagen should be consumed on an empty stomach - preferably just before going to bed. Collagen is best absorbed when taken on an empty stomach, and the amino acid glycine it contains can improve the quality of sleep. The glycine contained in collagen can also improve the condition of the stomach and intestines The timing of taking vitamin K2 is not important. Amino acids - such as glutamine and arginine - should always be consumed on an empty stomach. Regardless of the amount of use, the daily dose of amino acids should be divided into two or three parts. Various fibers - such as acacia fiber and apple pectin - can be consumed either on an empty stomach or with a meal. Regardless of how much fiber you use, you should divide the daily dose into two or three parts. By following these simple instructions, you can easily ensure that you get the best possible benefit from the nutritional supplements you use.