You have a good point. I've been wondering the same thing. I've been avoiding them due to their histamine content. I've tried reintroducing them recently but they seemed to cause bloating. Shame, as they are yummy.
F 5 ft 3. HW: 196 lbs. Primal SW (May 2011): 182 lbs (42% BF)... W June '12: 160 lbs (29% BF) (UK size 12, US size 8). GW: ~24% BF - have ditched the scales til I fit into a pair of UK size 10 bootcut jeans. Currently aligning towards 'The Perfect Health Diet' having swapped some fat for potatoes.