I’m still quoting from War’s End, which is in the editing stage. Coralie’s dog Bounce is bringing the Maung back to the group, and they are wondering how to feed it – and themselves, as they have only a limited supply of the emergency food bars.
“They do need different trace elements,” Ginger replied shortly after she took back the reader. “Mmm …. They can handle our amino acids — not a chirality problem — but they need a different balance than we do. Could be allergy problems, but probably not on the bars. This is not a complete reference, but I seem to remember that their bone structure is not based on calcium phosphate, or at least it’s got something else to make it stronger — they’re adapted to higher gravity than we are. I think they need more chlorine — there’s enough in their atmosphere to make Humans pretty sick. And several complex chemical compounds, like our vitamins, but there’s nothing we can do about that. At least they’re carbon-based and get their energy from oxidizing carbohydrates and hydrocarbons!”
If you’d like more information on the Maungs, check the second day of my world building week.