No, a desk is not a table. If we eat while we're working, or while watching TV or driving, we eat mindlessly—and as a result eat a lot more than we would if we were eating at a table, paying attention to what we're doing. This phenomenon can be tested (and put to good use): Place a child in front of a television set and place a bowl of fresh vegetables in front of him or her. The child will eat everything in the bowl, often even vegetables that he or she doesn't ordinarily touch, without noticing what's going on. Which suggests an exception to the rule: When eating somewhere other than at a table, stick to fruits and vegetables.
"Food Rules" by Michael Pollan. Penguin Books.