Natural Alternatives International, Inc. reaffirmed earnings guidance for the fiscal year ending June 30, 2021. Based on the company's current sales order volumes and future period sales forecasts received from its customers, the company continues to expect annualized fiscal 2021 net sales to increase between 30% and 50% compared to fiscal 2020. The company also expects to generate operating income between 5% and 7% of net sales for its fiscal year ending June 30, 2021.