RNZ reports about 120 delegates are attending the three-day conference 2nd Pacific Agribusiness Forum in Samoa's capital.
Tuilaepa told growers, manufacturers, restaurant and hotel owners at the Apia conference that the influx of imported food had contributed to health problems for islanders.
"Consumption of fruits and vegetables is low and vitamin and mineral deficiencies widespread," he said.
"We often experience food-borne illnesses which compromise the ability of Pacific food products to meet export standards."