Many consumers around the world are used to using vitamins and dietary supplements to actively prevent symptoms such as the common cold and seasonal flu, and 42 percent of respondents worldwide said they take vitamins and supplements to boost their immune system. While there are many consumers who look to sleep, diet, and exercise to maintain a healthy lifestyle, vitamins and supplements remain a convenient way to boost immunity, with 56 percent of respondents globally stating that vitamins and supplements are an important part of overall health and nutrition.
Across the globe, consumers are prioritizing vitamin C, multivitamins and turmeric to build and support their immune systems. Sales of vitamins and supplements continue to be most successful in Western Europe and North America. While consumers in these markets are passionate about vitamins and supplements, they don't rely on them alone to maintain a healthy life. They are taken for specific health problems and benefits that consumers can't get through diet and exercise. 
Global percentage of respondents regarding vitamin and supplement support for immunization
Therefore, the intake of vitamins and supplements is seen as a supplement to a healthy lifestyle.
