LDL cholesterol indicates an amino acid deficiency, researcher says

LDL cholesterol indicates an amino acid deficiency, researcher says
Fred Kummerow, a professor of comparative biosciences at the University of Illinois, reports that LDL cholesterol results from a simple dietary deficiency. Credit: L. Brian Stauffer

Low-density lipoprotein (LDL), the "bad cholesterol" that doctors consider a sign of potential heart disease, is merely a marker of a diet lacking all of the essential amino acids, says University of Illinois comparative biosciences professor Fred Kummerow, 99, a longtime opponent of the medical establishment's war on cholesterol.

While writing about the causes of for the journal Clinical Lipidology, Kummerow made a simple observation that "connected the dots" for him, he said. He noticed that, unlike other cholesterol-carrying molecules in the blood, LDL includes only a single apo-protein, called ApoB. And ApoB lacks the amino acid tryptophan.

"LDL is not a marker of heart disease," Kummerow said. "It's a marker of ApoB." And ApoB is a marker of a lack of tryptophan, he said.

Numerous studies have shown that the other cholesterol-carrying components of blood plasma – (HDL), very high-density lipoprotein (VHDL), very low-density lipoprotein (VLDL) and chylomicrons – all include two or more Apo-proteins, Kummerow said. HDL, for example, is made of ApoA-I and ApoA-II, which together are made up of all of the (those that cannot be synthesized in the body and so must come from the ).

The reason HDL is associated with better heart health is that the body produces HDL when it obtains all the essential from the diet, including tryptophan, Kummerow said. High HDL levels signal a healthy diet, he said. And high LDL levels "mean you're not getting the diet you need."

People who get much of their protein from grains such as wheat, rice and corn may lack adequate supplies of tryptophan unless they also eat legumes, which provide the missing amino acid in adequate amounts, Kummerow said.

Doctors who advise their patients to avoid cholesterol-rich foods may actually be undermining their health, Kummerow said. Turning patients away from foods such as eggs and other animal products that are rich in essential amino acids may actually raise their LDL levels, he said.


Explore further

Scientist, 98, challenges orthodoxy on causes of heart disease

More information: "Two lipids in the diet, rather than cholesterol, are responsible for heart failure and stroke." Fred A Kummerow. Clinical Lipidology 0 0:0, 1-16. DOI: 10.2217/clp.14.4
Citation: LDL cholesterol indicates an amino acid deficiency, researcher says (2014, February 26) retrieved 8 December 2019 from https://medicalxpress.com/news/2014-02-ldl-cholesterol-amino-acid-deficiency.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
31 shares

Feedback to editors

User comments