How to boost immune systems (mine & DC)???? so bored of one of us always being ill!

[cookiemonstress]

Hi
WOuld like some opinions/suggestions of any known supplements to boost immune systems. Have 2 dc (3.5 & 1) both in nursery so we have our fair share of germs which I accept as par for the course however since they both had chicken pox in December, I have seen more illness than I care to repeat! Suffice to say that i am on a mission to boost all of our immune systems!
DC diet very good, our diet is fairly good, but often miss evening meal as frankly too knackered to contemplate cooking by time we have got home from work and got DC to bed and done various chores/work etc.

I have been recommended something called Sambucol for DC I think but else could I consider?

Echinacea is very good. You can get the liquid for children, and adults can take the capsules.

i know it is not god advice but i was never ill drinking Sunny D! all those vits (lets not mention the sugar though!!)
but lots of fruit and veg and a good all round multi vit i suppose. and excercise.