For the past several months I have been watching my diet and cutting back on calories. I lost 25lbs. I am 47, lifting for 30 years no drugs whatsoever except for occasional Benadryl. Before going to bed I usually snack on half a cup of unsalted peanuts and cashews. Several weeks ago I started drinking diluted grapefruit juice and water to wash down the cashews. Strange thing. I started getting solid morning wood. Now, if I stop drinking the grapefruit juice, the wood is less pronounced or non existent. Now everywhere I search I find nothing linking grapefruit juice and morning wood. I am not saying it increased my libido, because it has not. Just solid wood. Also, this is not just a full bladder issue because if I wake up in the middle of the night, the wood is there. I have read that grapefruit increase estrogen in the blood. but that does not makes sense to me in this situation. I am not complaining, just curious. Anyone have any ideas?