My husband has cardiomyopathy, how should we change is diet?

Diet in Cardiomyopat: There is no specific dietary advice for cardiomyopathy. Since cardiomyopathy is due to multiple causes, the dietary advice will depend on the cause. The most common cause of cardiomyopathy is ischemic heart disease. If, in a given case, it is due to alcoholism, absolute abstinence from alcohol is advised. If cardiomyopathy has resulted in heart failure, the dietary advice is that for heart failure.

Good nutrition: He should achieve and maintain ideal body weight if he's isn't there already. Excess salt should be avoided. He should try to exercise every day. Other than that, he should take his prescribed medications, avoid alcohol if it was a causal factor in his particular case, and maintain regular follow up with his doctor(s).