The segment’s sales increase 46% behind strong demand.

Executive describes sustainability challenges posed by pandemic.

Share price falls 27% after company details 64% drop in profit.

Net income climbs 29% in first quarter.

Market share gain comes in breakfast food.

Company says it’s investing $1 billion in stores, employees.

Strengthening communication has helped Flowers establish credibility.

Transition into new facilities, higher input costs weigh on profitability.