there is no universal healthy diet that would be appropriate for two different people: one who needs to lose weight and another who may have special nutritional needs due to cancer or cancer treatment. you can both see a nutritionist. have an expert work this out for you. while there are universal "good foods" and healthy recommendations that will apply to every human you need individual dietary plans.
my husband has cancer but i need to lose weight. what would be a healthy diet we could both use?