If you are uncomfortable doing your own nutrition analysis and labels, we can refer you to a nutritionist to do it for you.
What Is Needed From You
What is needed in order to do a database nutrition analysis is essentially your recipe - the ingredients, amounts, and how much you get out of the recipe. You'll get a template to fill out with all those details to ensure you've provided everything needed, then it will be reviewed, follow up questions asked, and finally a label will be sent for your review.
For small projects (5 recipes or fewer) this can usually be completed within a week of getting all the information needed. There's a lot we can't control, and sometimes there can be a decent amount of back and forth with questions and changes, so that's just a general estimate.