The proof is NOT in the pudding. It's in the putting. As in putting one foot in front of the other, putting your best foot forward and putting your body into motion.
At my senior water aerobics class yesterday morning, Jackie, a stately, slim, and glowing woman old enough to be my mother told me: "You just have to make yourself do it if you want to live long." She went on to say, "I'm in better shape now than I was when I was 41." She told me how she had slipped a disc in her back at 41, and that it felt like forever before she could lift anything again. She's pleased that she can now easily lift a shrub in her garden.
We were talking about the fact that I was sore from my workout the day before. My "workout" being that I single-handedly moved an enormous couch out of our tiny den, (while Steve was at work and knew nothing about my impulsive decision to rearrange the furniture and dispose of said couch) by pushing, pulling, and eventually lifting it up on end and stuffing it through the door. I felt so strong and powerful! It was like lifting weights and I totally forgot any limitation my right leg might have had. While I was moving the furniture around, I thought about how much I enjoyed renovating homes, and that it might be just about time to tackle another home renovation, if we could find a cheap fixer-upper. Coincidentally, (or maybe there are no coincidences) I got a call from a real estate investor right after class who told me about a CHEAP fixer-upper that Steve and I might be interested in buying. (Wow! I'm thinking, just look at what moving a couch can do...) For good measure I got on my exercise bike and rode it hard for 20 minutes.
I don't know the origin of the phrase, "The proof is in the pudding," but I think the only proof I'd get from pudding is weight gain.