Zinc is an essential trace mineral involved in numerous biological processes, including immune function, cell growth, and enzymatic activity. Regarding cardiovascular health, scientific evidence exists but is limited in its strength. Several observational studies have suggested that zinc deficiency may be associated with increased risk factors for cardiovascular disease, such as hypertension, oxidative stress, and dyslipidemia. Zinc acts as an antioxidant and plays a role in reducing inflammation, both of which are important in mitigating the development of atherosclerosis and other cardiovascular conditions.

Some clinical studies have explored the effects of zinc supplementation on markers of heart health. For example, zinc supplementation has been found in some trials to modestly lower inflammation markers like C-reactive protein (CRP), and improve lipid profiles in certain populations. However, these effects are generally modest, and large-scale, high-quality randomized controlled trials are lacking. Current guidelines do not recommend zinc supplementation specifically for the prevention or treatment of cardiovascular disease in individuals with normal zinc levels.

In summary, while there is some scientific rationale and preliminary evidence supporting a role for zinc in heart health, the evidence is not robust. Zinc is not widely recognized as a primary supplement for cardiovascular support, except in cases of deficiency. More research is needed to clarify its benefits for the heart.