Dietary cholesterol: from physiology to cardiovascular risk.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing physiology and broad epidemiological concepts without systematic review methodology
PubMed 21385506 · doi:10.1017/S0007114511000237
What was done
This narrative review examined human cholesterol physiology, including endogenous synthesis, intestinal absorption, and enterohepatic recycling, and evaluated the relationship between dietary cholesterol intake, plasma cholesterol levels, and cardiovascular disease (CVD) risk based on epidemiological and biological literature.
What was found
The abstract reports no numerical data, effect estimates, or statistical values. It reports qualitatively that dietary cholesterol does not significantly influence plasma cholesterol levels due to homeostatic compensatory mechanisms, notes that individuals vary in absorption and response phenotypes (hyper-absorbers and hyper-responders), and concludes that epidemiological data do not support a link between dietary cholesterol and CVD.
Why it matters
The paper summarizes physiological mechanisms explaining why dietary cholesterol often has a limited effect on blood cholesterol concentrations and clinical cardiovascular endpoints.
Limits
The abstract provides no primary data, systematic search criteria, or quantitative synthesis. It lacks numerical effect sizes and does not quantify risk differentials for identified subgroups like hyper-responders.
Cited by
- supports Cholesterol is required to build cell membranes, synthesize steroid hormones, make vitamin D, and produce bile salts.