Athletes can develop an enlarged heart as a result of prolonged physical training that makes the heart stronger and healthier.  However, a heart that becomes enlarged in a sedentary person is a symptom of beri beri, an advanced thiamine (vitamin B-1) deficiency, and may result in heart failure.  Selenium and L-carnitine help to strengthen heart tissue.

See also the book, BYPASS THE BYPASS: Restore Circulation Without Surgery:  https://rowlandformulas.club/shop/bypass-the-bypass-restore-circulation-without-surgery/

Example of a cardiovascular nutrition formula:  https://rowlandformulas.club/shop/rtre-cardiovascular-nutrition-vitalized/