I quit white sugar for some time and I am not sure if sugar is really toxic but I can say:
- Coming through the day w/o white sugar is a completely different experience: no more downs (or "sugar crashs") through the day and work motivation is always up
- These sugar crashs or downs can be severe especially if you are under stress; then the stress is multiplied which leads to depression and more white sugar consumption
- Eating now fruits because of the fructose regularly, before I've never ate fruits (there was no reason because anything with white sugar was much sweeter and tastier than fruit)
Now when I accidentally eat something containing white sugar I immediately "feel" the white sugar: my brain is getting a high like with alcohol or caffeine—it's a difference compared to fructose. It's a subtle feeling and you probably won't feel it if your are used to white sugar. Before I related the downs to the heavy lunch I had before, that I haven't slept well or that the work is just so boring, etc.
Another observations regarding "white sugar could be drug": Look how many shelves with sweets you find a grocery store and compare the amount to other foods and with alcohol (where you usually find similar quantities).
And: Is it a real alternative to a Mac for a developer?