Help with homemade mix sources

[ToastieHammy]

Hi all,

I'm interested in starting to create my own homemade food mix as my little ham has been on the lower end of the average Syrian weight since I got her so would like to be able to tailor her food more specifically, especially as she gets older. I'm absolutely willing to do all the research it requires, but I'm not entirely sure where the best place is to find out the actual nutritional values of raw ingredients. Is there a particularly good website anyone has used before? At the moment I'm looking at this: https://www.nutritionvalue.org/Oats_...nal_value.html, but I'm not 100% sure if I can use the DV values here or need to calculate my own percentages.
Might be a stupid question, but better to check than use the wrong values! I'm also going to try and buy most of my ingredients from ratrations, they have values for some of the ingredients I want to include but unfortunately not for a lot of the grains.

Thanks