you've still got lots of time and you may find you wanna rethink the cereal ..

great first foods are smooshed bananao, sweet potato, avocado etc. commerically prepared rice cereal is pretty nutritionally empty, though solids are more for learning than nutrition until closer to a year. the primary source of nutrition should be human milk for the first 12 months.
i have more info on it, if you want when it is closer to time.

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