I've never heard of metanium. I just use Lanisoh on everything, since I didn't wind up using it much on myself. Works for sore bums, and chapped face on my lo. Yay Eliose for poo!! I am pretty structured as to what I give as far as food. Breakfast is oatmeal and a veggie, lunch is meat, veggie, fruit, dinner is meat, veggie, starch, fruit. Sometimes I give 2 veggies, if I have on hand. Guess I can't help my structured nature!!