Good advice - I would especially emphasis the use of Vitamin D as multiple researchers have shown that you will simply not get flu of any type if you Vitamin D levels are where they should be. Vitamin D is also a good modulator of the immune system, boosting its cellular response whilst protecting against autoimmune conditions.

Regards, Marek - West London Nutritionist

In the past this website has always written in opposition to detox cleanses. What has changed and why do you now recommend it?

Another way to strengthen the immune system is to not use germicidal soaps and to come in contact with germs at a lower level. (That's of course is how vaccinations work.) We keep our children too clean and we sanitize everything. Hence, we have seen a great increase in allergy prone children and weakened immunity systems. We don't let children become immune as they grow up. Also, too many sweets is probably another culprit. Remember Polio was a rich mans disease for the most part. Children at lower socio economic levels played in the street and dirt and people didn't even know that natural immunity was taking place. This is also another way vaccination works. Children with strengthened immune systems don't pass on illness to other children.

Good diet, exercise and being outside all work towards developing a strong healthy person. 

This advice does not sound credible and does not sync with that I have had from Univ of CA, San Francisco docs specializing in communicable diseases and viral studies.  A detox cleanse?  Please back up your claims.  This site loses credibility with posts like this.

GD, PhD.