Well it often is both. To get so grossly overweight that some people are, inaction is a big factor. But the calories have to get in there in the first place, and they are taking in far too many calories per day, far too many of the wrong types of calories, and not nearly enough activity.
The documentary Fat Head proves one can get healthier, eating a fast food diet for a month, by putting a reasonable ceiling on your daily calories, avoiding the sugar soda, and limiting carb intake, and doing some mild walking 5 days a week.
Yes, ‘Fathead’ was what got my husband interested. It’s quite an expose of standard nutrition advice.
-JT
“The documentary Fat Head...”
I watched that one Netflix. I was forced to watch “Supersize Me” in high school, and I knew it was nonsense. I enjoyed “Fat Head” a lot.