Would love to hear what Cy and others think of this. If it is true, then it seems peanut butter is a no-no.
David Kritchevsky, PhD, and colleagues at the Wistar Institute in Philadelphia showed that peanut oil lectin (PNA) was most likely responsible for the artery-clogging properties…It was found that PNA did its damage to the arteries by binding to a specific sugar receptor…Peanut oil is so atherogenic that it continues to be routinely fed to rabbits to stimulate atherosclerosis to study the disease itself.
I don’t think that’s natty PB. I think the hydrogenation of the PB is what fuck up the rabbits and rats.
I’ve had natty PB and eggs (lots) make blood lipid profiles go from awful to awesome. I hope I don’t get fuct from NPB, I eat that shit by the jar. I should buy shares in it. celery and NPB are my ataple snack usually.
hopefully they are wrong as hell or talking about shitty PB.
I also love PB that is why I would like to hear what Cy and others know about this. Loren Cordain is a respected scientist as far as I know…He was not talking about hydrogenated peanut oil by the way.
Man I hope not. I’ve been going through 1/3 a jar a day for a while now. It would really suck to remove it from my diet since it’s so cheap and a simple way to add fat and a little protein. Is this new information?
Lectin may contribute to the atherogenicity of peanut oil.
Kritchevsky D, Tepper SA, Klurfeld DM.
Peanut oil is unexpectedly atherogenic for rats, rabbits, and primates. The lesions it produces are more fibrous than fatty. The mechanism underlying the atherogenicity of peanut oil has been elusive. Randomization of peanut oil reduces significantly its atherogenic properties, but native and randomized peanut oils have similar rates of lipolysis, and rats fed the two oils absorb and transport lipids in a similar fashion. Peanut oil differs from other oils in having a relatively high lectin content, and the randomization process markedly reduces the lectin content as well. The biologically active lectin of peanut oil has an affinity for glycoproteins found specifically on arterial smooth muscle cells. Peanut lectin has been shown to stimulate growth of smooth muscle and pulmonary arterial cells. Vigorous washing of peanut oil reduces its lectin content by 46%. Compared to rabbits fed cholesterol and peanut oil, rabbits fed cholesterol and washed peanut oil exhibited less severe atherosclerosis in the aortic arch (by 9%) and in the thoracic aorta (by 31%). The data suggest that peanut oils' endogenous lectin may contribute significantly to its atherogenic properties.
Maybe they need to quit doing stupid studies on peanuts clogging your arteries and start doing more on how trans fat can cause heart disease and clog your arteries.
I’m also curious as to what dosage of Peanut oil they fed the rabbits and rats. I can imagine that it is something in the realm of a 200 lb man injesting 55 gallons of peanut oil in order to reproduce the atherogenic symptoms. I’m also curious as to how much of the lectin actually makes it into the human cardiovascular system. I would think that peanut oil consumed with anything fibrous like oatmeal would negate the atherogenic effects. -Starkdog