how to protect unfinished wood dining table, from Restoration Hardware

Anyone know the best way to protect the table from common spills and use,  yet keep the rustic look and color. Thanks! https://bmfurniturecompany.com/unfinished-wood-dining-table/68-inch-canyon-x-dining-table-bare-wood-fine-wood-furniture/

Anyone know the best way to protect the table from common spills and use, yet keep the rustic look and color. Thanks!