Hemp Seeds and Health

what would you do to inform someone tha tis suffering from aspartame diet soda, memory loss

has had a heart attack, 

that  hemp products are worth taking

? 
I gave my grandfather some hemp milk a week ago, he tried it, seemed please, but as people are disabled in the brain, even as i am now from coffee + creamer, they are less likely to change and are victims to the slug of cultural hypnosis, as i am feeling lazy right now myself and not as jubilant to go print articles, get stuff accomplished etc 

so, he says "well i will let you know if i want more" and i hate to think he would willingly continue to harm himself a prey to aspartame but not take something that helps his brain, 

i may print up this article and show it to him, as well as the one about hemp repairing dna. i don't like to be stern and make people do things, but old people are always stern making kids do things, such as throw away their pot even though tit helps them enjoy life and be healthy and happy, or make them take dangerous pharmaceuticals that mess them up , sometimes forever.  yes i usually always write to educate even if asking questions :)