Looking at the ingredients list of instant coffee, we can know that the most content of the ingredients is non-dairy creamer (or coffee companion), followed by white sugar (or coffee powder), coffee powder (or white sugar) again, and finally some auxiliary food additives. There are two main health problems worthy of attention: first, food additives. Even if these big brands of products can reasonably use various food additives according to relevant standards, complex and diverse food additives are still a food safety hazard. The second is hydrogenated vegetable oil, which contains "trans fatty acids", and excessive trans fatty acids have definite harm to cardiovascular and cerebrovascular systems.