No. The term "sweetbreads" does not refer to pastries and baked bread products. Instead, it refers to a dish made from the thymus or pancreas (organ meat) of a young animal. Organ meats are high in purines, and these should be avoided by people who are susceptible to gout.
Gout is a form of arthritis that develops when excess uric acid in the blood builds up and forms crystals in one or more joints. This most often happens in the big toe.