In early April, the out of stock rate jumped to 31% according to Datasembly, the retail inventory experts.

In six states more than half of baby formula supplies were completely sold out.

CVS Pharmacy confirmed Saturday that it is limiting customers to three toddler and infant formulas per transaction.

Target says it has limited baby formula purchases to four units per customer for online sales.

Social media posts from customers indicated Walmart was pursuing a similar policy, but there's no confirmation from the retail giant.

Supply chain issues along with the FDA shutdown of an Abbott nutrition manufacturing plant in Michigan are compounding the problem.