Can I buy powdered lactose at a grocery store?

Brewing a milk stout tomorrow and just realized that the kit didn’t come with any lactose. There is a homebrew shop about 45 minutes from me but if there’s a chance I can find it locally at a grocery store id like to skip the drive. Has anyone ever seen it in a place like Wal-Mart or Martin’s grocery?

https://www.walmart.com/ip/NOW-Foods-Lactose-1-Lb/49552081?wmlspartner=wlpa&adid=22222222227037117562&wl0=&wl1=g&wl2=c&wl3=58667077898&wl4=pla-91515813218&wl5=9030849&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=49552081&wl13=&veh=sem

I’ve seen it at a couple natural/health food stores I sometimes raid for brewing supplies.