clinton griffiths took a trip to salisbury, massachusetts for a history lesson, through the eyes of a farmer. clinton says the clinton says the . >> the bartlett family has been working on this land , growing crops, cutting trees and supporting the rise of america. >> i the field we hay. donna bartlett and her brother jim are the 11 the generation on this plot of land. a farm, some 370 years in the making. >> it's pretty impressive. it's impressive to have a farm that long and see the generations. >> it was the mid1640s when their ancestors first moved here. >> you go back in the to mid1600's, people were going away from plymouth. . >> they work the farm in the summer. >> in a world made of wood the forest couldn't keep up. >> this was known -- as the plains, just stripped of trees. >> over the sent rips the trees grew back and the farm continued. >> i think my father said -- they brought their first. . >> generation after generation has found pride in living off the land. pride passed down from father to sibling. >> he installed -- a love of the heritage and farm. open land and, that

. >> for the united states farm report i'm clinton griffith reporting. >> he said he grows produce foror, not appearance. he said it may not be pretty but he believes people should insist on taste, not the outer skin. next week we will head to tennessee where students are getting a lesson in volunteering before they get their college degree. that's next weekend on spirit of the art land. coming up next, why doctors say a growing number of people are allergic to healthy food. we hear the message all the time - we need to improve our diets. but as it turns out, sometimes eatin . >> as it turns out sometimes eating healthier can back fire. that's because a growing number of healthy eaters building an allergic reaction to nickel. >> for years she has made an effort to lead a healthier life by exercising eating right but him stead of enjoying the rewards that she found herself in pain. >> i -- my muscles would twitch. i had sleep problems and i would wake newspaper the morning feeling like i wasn't rested. >> the food she was eating was high in nickel. it may be contributing to a rash of ne