Conclusion he comes to at the end (or silver lining) is contradicted by his very source, too: "how long you stick to it" clearly doesn't actually work if no matter which diet people did, they didn't stick to it.
Conclusion he comes to at the end (or silver lining) is contradicted by his very source, too: "how long you stick to it" clearly doesn't actually work if no matter which diet people did, they didn't stick to it.