RESUMO
Folic acid contained in potato (<i>Solanum tuberosum L.</i>) tubers is concentrated in potato chips by dehydration during frying. It is a vitamin recommended to young women which helps protect fetus from congenital disease. Additionally, folic acid can lower plasma homocysteine concentrations, a known independent risk factor for cardiovascular disease. This study was designed to determine whether the dietary consumption of potato chips affect serum folic acid concentration and plasma homocysteine concentration in human subjects. Results showed a significant increase in serum concentrations of folate 1, 3, and 6 hours after ingestion. Vitamin B<sub>6</sub>, on the other hand, increased significantly after 3 hours of intake. In contrast, plasma homocysteine concentration decreased significantly 6 hours after ingestion. These results suggest that potato chips would be a good dietary source of folic acid for humans.<br>
