background: My 95 year old dad, has 2 heart valves leaking, one is a bio(pig) valve replaced 10 yrs ago... he is on oxygen now, and has been prescribed 3 inhalers of some sort... (I am 600 miles away and am catching up with details)...I think there is now concern about his throat or lungs or ? He has been on oxygen a few months now. A few weeks ago I got him some Acai100 (genisis brand) to supplement his nutritional requirements. He takes an ounce daily before eating. Question: I want to know if it will cause more harm than good? The benefits may be questionable, which is not an issue, but I certainly don t want this to add to his struggle. Thank you for your attention to my question. I look forward to your response.