Combining Breastfeeding and Formula Feeding - Supplementing breast milk Like 60.97% | 687 votes Views: 988 57 Download Option #1: Mix. Option #2: Start baby with a. Categories: Old Comments: Add Comment Cancel By Tumi - 14:01 Option #3: Pick one or several feeds of the day to be formula feeds and only offer formula at that. By Faujinn - 12:18 Read more about formula-feeding problems Can I mix breast milk and formula? By Duhn - 09:12 Giving your baby formula in addition to breastfeeding is called supplementing. It's completely OK and perfectly safe to do, and many families. By Mezilkis - 03:07 Frequently asked questions about supplementing with formula. Can you mix breast milk and formula? How can you avoid nipple confusion?