How can I teach my kid healthy eating and exercise habits?

in most cases, your kids will always follow your example and do the same. i am a firm believer in living a healthy lifestyle, and i have seen that ever since i started bringing in the change in me, my kids followed the same. i stopped eating fried and junk food and they kind of stopped too. i never have any colas or sodas and till date they have not had it as well. they are 10 and 4. i exericise every day and even though they are not able to do everything i do, they try to do some of it. what i mean is that whatever positive lifestyle habits you want them to adopt, you wil have to make sure you follow them too first.