I swear by this stuff. I have never gotten the flu when taking it 1 per day to prevent the flu. I have been taking it for around 15 years now. I have been in places where people had the flu and I never got the flu. I did get the flu when I ran out of it one year.
This product should always be in our house! With small manifestations of the common cold, I just give it to my kids or husband or myself and that’s all! We are absolutely healthy! Even if one of us gets sick, this product helps to recover quickly!