Not only are the majority of these tips ineffective, but some of them are also DANGEROUS! Avoid getting flu shots? ... That truly is testament to the stupidity of the human race, they do not cause autism or any of that non-sense, for your benefit I will tell you how they work: The way your body fights of infections is by deploying white blood cells which target and kill the infection, some just go and eat them, whereas others deploy ANTIBODIES which can do many things such as starving the bacteria, or sticking them together into clumps for the other white blood cells to eat, the way the antibodies target the bacteria are by attaching them selves onto the bacteria, it's quite complicated, but basically each bacteria has different bits onto which the antibodies attach themselves to meaning only specific antibodies can target specific bacteria.
So what does this have to do with flu jabs? Well, the flu jab works by injecting you with a bunch of DEAD bacteria, which the body treats as alive and a threat, meaning you may experience some symptoms (such as being too hot or cold, the body's way of slowing the breeding rate of them), but only because your body is doing it. So if you think about it, how can dead bacteria cause autism? I am well aware of the scare that went around at one time, but that has been dis-proven, shown to be only a misguided attempt at trying to keep people safe.
And the GM (genetically modified) crops? Don't be silly, they really are harmless, the only difference with them are better qualities chosen within them, so instead of going out of date VERY fast (organic) they stay around for much longer, are much more nutritious, can grow faster and are safer in the way that organic crops have little resistance to disease, whereas the much better GM crops have better NATURAL resistances, meaning little or no need for pesticides.
And finally, DO NOT avoid chemists or doctors, they are there to help and that is what they do, they treat causes and symptoms where possible, (the causes are usually impossible to treat because the infection has already set in, meaning that if you try to combat them, you effectively fight nothing, similar to shooting where your target was, not is).
One final thing though, i'm NOT some kind of medic freak that will only accept treatment from pills or injections, that note on fasting is a very good idea, but probably not while you are ill because your body needs food to fuel the fight.