1. Get sleep. OK, this is probably a good piece of advice for anyone. But there is no evidence whatsoever that sleep has any influence on subsceptiblity to infections. However, I won't be too critical of this advice, because sufficient sleep is important.
2. Eat right. Once again, good advice. The author mentions shiitake mushrooms, but the evidence is only in animal models, and even there, the in vivo results required an unorthodox method to detect a change. The author mentions zinc, the effect of which has already been discredited. The rest of the claims are similar. No real research supporting it, or actually showing it doesn't work.
3. Stay hydrated. Once again, good advice. But it's not going to do anything to prevent you from getting the flu.
4. Exercise. The author makes two specious and unsupported claims. First, a little exercise strengthens your immunity, but, second, too much exercise makes you more subsceptible. Well, there's some evidence that aerobic exercise does improve immunity to certain infections. But it doesn't say anything about "too much." Of course, I would contend a healthy cardiovascular system through vigorous aerobic exercise would be worth the risk of a flu.
5. Some woo about foods to eat if you do get the flu. None of it works. The flu will take its course, so it's important not to infect others, and if there are serious secondary infections, the patient should seek treatment.

Tags: Swine flu, Alternative medicine, Pseudoscience, Flu