Good stuff. But I never catch the flu or even a cold because I stop them at the first hint with 2,000 Mg. of Vit.C and then 1000 mg. every 4 hours. Haven't had a cold in 15 years. Never sick, don't have old age pains, don't take medicine. The only thing that allows me to feel compassion for sick folk is the chronic disease that I have called Benign Essential Blepharospasm. Doesn't hurt or make me sick, just involuntary eyelid closure. Lived with it since 86. No cure they say. Don't let it stop me from living though. Just go get the BOTOX and carry on. Upside: the BOTOX keeps me looking goo....ud.