Third on MFP. I does everything it needs to do and has a huge database. You have to keep in mind though that it’s really just estimates. Hell labels on food only need to be within 20% of actual content per FDA regs. You’re working with averages of averages (of averages if you’re looking at it weekly).
I use it as a general guideline and am not overly anal about it. Of course I don’t compete - your perspective would be different if your goals are different.