Welcome to the forum Marian!
1. we don't have any specific advice about the greens, we believe that the MMSs are out of your blood by 2 hours after taking them. If you take vitamin C prior to that, then it will neutralize the MMS. The question is whether the greens will act like vitamin C? We don't know at this time. You could try it and see if you can tell. Vit. C that is concentrated from natural sources and made into a supplement neutralizes any MMS in your system when you take it, whereas vit. C in foods doesn't except in the case of orange juice.
2. you don't want to take the multi vitamins with antioxidants and vit. C until 2 hrs after your last dose of MMS for the day. After that it is fine to take them and even recommended.
3. most natural sources of vitamin C in food are not a problem, but Jim has observed that orange juice added to a dose will neutralize it. He learned this from treating thousands of cases of malaria and if a dose was neutralized he knew right away. I believe he has said you can drink orange juice SEPARATELY from your MMS dose, it is just adding it directly to the dose that neutralizes it. As far as we know pineapple is okay.
Let me know if there is anything else,
Michael