Is it bad to eat 1/2c of oatmeal 2x per day?

I know oatmeal is really good for you but is it bad to eat a serving 2x per day when trying to lose weight? I usually put stevia in it, or some protein powder or an egg. But I feel like I'm not getting enough nutrients by eating oatmeal 2x per day. Other than that my diet is healthy (lots of greens and protein). Is it ok?
Is it bad to eat 1/2c of oatmeal 2x per day?
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