Former U.S. Vice President Al Gore speaks during the Skybridge Alternatives (SALT) Conference in Las Vegas, Nevada May, 9, 2012. SALT brings together public policy officials, capital allocators, and hedge fund managers to discuss financial markets. (REUTERS/Steve Marcus) Former U.S. Vice President Al Gore speaks during the Skybridge Alternatives (SALT) Conference in Las Vegas, Nevada May, 9, 2012. SALT brings together public policy officials, capital allocators, and hedge fund managers to discuss financial markets. (REUTERS/Steve Marcus)

Maybe it was something about what they served in the White House mess in the 1990s. Or perhaps it's what happens to baby boomer  Democrats more than a decade after leaving office. For whatever the reason former vice president Al Gore has gone vegan, just like the president with whom he once served.

Gore's recent decision to forgo animal products surfaced as an offhand reference in a Forbes magazine piece about Hampton Creek Foods, an upscale vegan product line carried in Whole Foods. Ryan Mac's article, which posted Saturday, chronicled how wealthy investors including Bill Gates, Tom Steyer and Vinod Khosla have poured money into the company, which hopes to take down the U.S. egg industry with offerings such as a plant-base mayonnaise.

"Newly turned vegan Al Gore is also circling," Mac writes.