Does your husband have a peg tube? My brother used a protien shake called "SERIOUS MASS" after it was recommended by a nutritionalist. We bought it online. It did a wonderful job of helping him maintain his weight. He lost from 275 to 175 before we found it. Once he started it his weight stabilized for about 7 months. He probably lost 10 more right before his death, but it was great, high protien, high calorie stuff.