I never thought that what you eat could affect your rational, logical or clearness of thought, but my contact with the software programmers from India who are 'strict' vegetarians has given me pause to think. They will not even eat food that has touched or been prepared along side of or on the same counter as meat. They have a keen mind and are able to quickly diagnose a problem and correct it in a manner that is almost astonding. Yes, the other programers can 'fix' issues but more in the manner of a mechanic that changes all the parts in the area affected, not a true mechanic that can diagnose the exact part which has failed and change only the part needed.