Newbie w/question on Boost or Ensure with MMS

I have been searching JH's site and this forum to find an answer & have not found it yet. If someone can link me to an existing thread, or direct me where to look, that would be great.
I live in the USA.
A friend, with Stage IV cancer, depends on Boost or Ensure nutrition drinks for his food intake/protein.

Foods are extremely difficult for him to eat, due to the horrible taste that foods now have for him.
One or two bites and he is gagging and done.

These nutrition drinks have 100% vitamin C on the Nutrition label.
Does this mean he should not consume them when he starts his MMS cancer protocol? We are expecting his MMS today.

Wish I could give you a definite answer. All I can recommend is that the person continue with Ensure until they want more foods and then to go high protein and veges - Since they're using Boost 3x a day - hopefully the MMS is not being impacted the rest of the time.

Thank you, pam.
That does help. In this case, he does not have much choice for eating foods and really needs to continue with Boost.
I appreciate your reply.