Daikon

Daikon: Nutrition Facts and Health Benefits

Daikon (Raphanus sativus var. longipinnatus), also known as mooli, white radish, or Japanese radish, is a large, mild-flavoured root vegetable widely used across East and Southeast Asian cuisines. Unlike the small, peppery red radish familiar in Western salads, daikon is long and cylindrical — commonly 20–35 cm in length — with crisp white flesh and a milder, slightly sweet flavour that varies from fresh and peppery when raw to mellow and almost sweet when cooked. It is a staple vegetable in Japanese, Chinese, Korean, Indian, and Southeast Asian cooking.

Nutritional Value of Daikon

Daikon is very low in calories — approximately 18 kcal per 100 g — making it one of the lightest root vegetables. It provides dietary fibre, vitamin C, folate, potassium, and small amounts of calcium and magnesium. Daikon is notable for containing digestive enzymes, particularly diastase, amylase, and esterase, which are present in the raw vegetable and have traditionally been associated with supporting the digestion of starchy and fatty foods. It also contains glucosinolates — sulphur-containing compounds found across the crucifer family — and various polyphenols with antioxidant activity. Like all radishes, daikon belongs to the Brassicaceae (crucifer) family.

Health Benefits of Daikon

Daikon's low calorie content and high water content make it a valuable addition to a balanced diet for managing caloric intake. Vitamin C supports immune function and antioxidant defence. The digestive enzymes in raw daikon have been used in traditional Japanese medicine to aid digestion, particularly alongside rich or oily foods — daikon oroshi (grated raw daikon) is traditionally served alongside grilled fish and tempura in Japan for this reason. The glucosinolates in daikon have been studied for potential anticancer properties, consistent with research on other cruciferous vegetables.

How to Select and Store Daikon

Fresh daikon should feel firm, heavy, and smooth with unwrinkled skin and crisp green tops if still attached. Soft, spongy, or shrivelled daikon is past its best. Store whole daikon wrapped in damp paper towel in the refrigerator for up to a week. Cut daikon should be wrapped and refrigerated, used within three to four days. Daikon loses digestive enzyme activity on cooking, so those seeking this benefit should use it raw.

How to Use Daikon

Raw daikon is grated, sliced, or julienned into salads, slaws, and as a garnish. It is pickled extensively across Japan (takuan, daikon kimchi) and Korea. Cooked daikon features in soups, stews, braises, and hotpot dishes, where it becomes tender and absorbs surrounding flavours beautifully. Daikon radish cake (lo bak go) is a popular dim sum dish across Chinese cuisine.