The problem with having certain snacks during work is that some, such as oatmeal, can trigger insulin production. Other snacks like almonds contain tryptophan and magnesium that will allow your muscles to relax and naturally make you feel ready for bed — the exact opposite of what you’re going for in the middle of the day. Tryptophan is also released when you eat turkey or hummus, if lunchmeat roll-ups or crackers with dip are on your snacking docket.