During certain periods of the year, you as an athlete are more susceptible to catching a cold or flu. This can be especially annoying when it happens during a period when you have your most important matches. With this resistance package you can give the immune system a boost.
There are a number of dietary supplements that support your resistance. During periods you are more susceptible to becoming ill, such as during autumn and winter, a stressful period or the moment you are trained to peak, this package strengthens your resistance with vitamin D3, C and zinc.
Omega 3, probiotic and quercetin supplements are known to increase resistance as well.