Actually, the water content of plant material is 85 to 95%. I don't use dehydrated anything for my birds but I do use naturally dried fruits like figs, dates, raisins, apples, tomatoes, etc. (and untreated with sulfites, of course). The water content of these fruits after drying varies but it's about 20 to 30% and they are either mixed with the gloop (which is quite moist) or in their birdy bread (which is also very moist).
Now, vegetable broth is not really very nutritious at all. See this from Livestrong:
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Vitamin Content
Although vegetable broth is made from vegetables, the end result isn't very high in vitamins. Each cup does provide you with 10 percent of the DV for vitamin A, which you need for healthy vision and immune function. Opting for another type of broth won't increase your vitamin intake much, either. Beef broth isn't particularly high in any vitamins, but a cup of chicken broth will help you boost your vitamin C intake with 27 percent of the DV. Vitamin C helps prevent cell damage from free radicals and is essential for forming collagen.
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The other thing is kale. Now, kale is highly nutritious BUT it also has a very high content of sorbitol, an indigestible type of sugar that creates an undesirable reaction in the digestive tract (I can't eat it, I get 3 straight days of diarrhea if I do) so, although I don't know (I don't think anybody does as there are no studies) if it affects birds the same way, I play it safe and don't feed it to mine very often. But cooked is better than raw and blue kale is better than green so mine get a bit of the latter in their gloop and the dino one raw once every two weeks.





