He brought this verse to mind...
"But the fruit of the (Holy)Spirit is love, joy, peace, long-suffering, kindness, goodness, faithfulness, gentleness, self-control. Against such there is no law."
It is the Holy Spirit.. literally God in us that is gonna help us to be consistent and self- controlled. The most important thing we can do is to continuously take our struggles to Jesus in prayer. He will give us the strength to accomplish what He wills for our lives.. whether that is a size two or just a healthy life style in general. It is like the Amy Carmichael quote in the blog header says.. "It is a safe thing to trust Him to fulfill the desires which He creates." God cares about all areas of our lives, not just the "spiritual" stuff.
Happy New Year,