Is dietary cholesterol required for good human health?
A deep-dive on how dietary cholesterol might or might not affect your LDL-C
Cholesterol is one of the body’s most tightly regulated and energetically expensive molecules; however, it is still widely portrayed as something to restrict or minimize.
Every nucleated cell can synthesize it, and several organs use substantial metabolic resources for its local production. In some tissues, most notably the brain, dietary cholesterol does not materially influence cholesterol content under normal physiological conditions because lipoprotein-bound cholesterol does not cross the intact blood–brain barrier.
This raises a central biological question: if cholesterol can simply be obtained from food, why did evolution invest in such an elaborate and tightly regulated system to manufacture it internally?
The answer lies in the indispensable structural, metabolic, and signalling roles of cholesterol and the biological necessity of local, on-demand synthesis.
Cholesterol is not only useful but also essential for multicellular life.
Is dietary cholesterol required for good human health? Read Post »