You family doctor in the USA is most cost effective but it also depends on the country you live in
So first of all i need to know what it the thing they are asking that would influence the person? What is the action? Based on you're comment below I will then comment back with the answer, Thank You
Internal influences: Internal influences simply come from users' own mindset and way of living. These are all the personal feelings, self-conceptions, feelings , attitudes, ways of life, encouragement and recollection of consumers
External influences: Media, friends, family, environment and laws.
Hope this helped!
A better choice would be veggies and fruits. Snacks with proteins such as protein bars and shakes.