What the article doesn't mention, is how he felt.
I'm currently wrapping up a diet to lose the 50+ pounds I've gained in the last 20 years. This process has reinforced the connection between what I eat and how I feel.
When I eat the "wrong" foods such as cookies, donuts, candy, hamburgers with fries, and pizza, I will feel groggy, dizzy and I will get migraines. I will also have trouble thinking clearly and with focusing on any task. These affects can build over several meals. When I am having trouble being productive, these affects are usually a prime factor.
If you are still around, would you mind sharing how you are doing with the Hacker's diet; if you still feel the same way about junk food; and what your diet is like these days?
Twinkie diet helps nutrition professor lose 27 pounds:
But the highlight, for LW-ers, comes at the end: