IHD from copper deficiency: a unified theory.

Area of Science:

• Nutritional Science
• Cardiovascular Medicine
• Biochemistry

Background:

• Ischemic heart disease (IHD) remains a leading cause of mortality globally.
• Existing etiological theories for IHD have limitations in explaining all disease attributes.
• Dietary factors are increasingly recognized for their role in cardiovascular health.

Purpose of the Study:

• To present a theory implicating copper (Cu) deficiency in the etiology and pathophysiology of IHD.
• To evaluate this theory against established criteria for environmental health associations.
• To explore the link between dietary copper, iron supplementation, and IHD development.

Main Methods:

• Review of epidemiological data correlating IHD trends with dietary copper intake since the 1930s.
• Analysis of similarities between copper-deficient animals and IHD patients (over 80 identified).
• Examination of the role of iron (Fe) as a copper antagonist, particularly in pregnant women.

Main Results:

• The copper deficiency theory explains more IHD attributes than alternative theories.
• A temporal association exists between decreased dietary copper, increased IHD, and increased iron supplementation in pregnant women.
• Over 80 physiological and biochemical similarities are observed between copper-deficient animals and IHD individuals.

Conclusions:

• Copper deficiency is a strong candidate for the etiology and pathophysiology of IHD.
• The theory aligns with Hill's criteria for environmental disease causation.
• Further research into copper's role in cardiovascular health and disease prevention is warranted.