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Rooted in Nutrition Series 2: Sweet Potato

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After the first tuber of this series – Tapioca, here comes the Sweet Potato!

The modest sweet potato has journeyed across continents, sustained civilizations, and even ignited historical discussions. Coming from Central and South America, it was grown more than 5,000 years ago by the ancient civilizations of Peru and Mexico. When Christopher Columbus reached the Americas, he was so amazed by this naturally sweet, nutritious root that he brought it back to Spain, from which it disseminated worldwide.

Notably, sweet potatoes arrived in Asia and Africa well before the Columbian Exchange, potentially transported by Polynesian navigators who sailed across extensive oceanic expanses. In India, sweet potatoes (shakarkandi) are a popular winter treat, commonly roasted or boiled and served with a dash of salt and spices. They are also a significant feature in celebrations such as Navratri.

Different varieties of Sweet Potato
Pic courtesy – Link

Although frequently mistaken for yams, sweet potatoes are a unique species, found in multiple colors—including orange, purple, white, and yellow. Full of beta-carotene, fiber, and vitamins, they serve not only as a tasty treat but also as a nutritional powerhouse.

From the dishes of ancient societies to contemporary kitchens, the sweet potato remains a representation of endurance and nourishment—its path intertwined with the essence of culinary traditions worldwide.

Botanical name: Ipomoea batatas 
Common name from flowerofindia.net: Sweet Potato, Brazilian arrowroot • Assamese: মিঠা আলু mitha alu • Bengali: মৌআলু mau alu, মিষ্টি আলু mishti alu, রাঙাআলু rana alu, রাঙ্গা আলু ranga alu • Dogri: शकरकंदी shakarkandi • Gujarati: રક્તાળુ raktalu, રતાળુ ratalu, શક્કરીયાં shakkariyam • Hindi: मीठा आलू mitha alu, शकरकन्द shakarkand • Kannada: ಗೆಣಸುಗಡ್ಡೆ Genasu gadde, ಸೀಗೆಣಸು Seegenasu, ಸಿಹಿಗೆಣಸು Sihi genasu, ಗೆಳಸು, ಗೆೞಸು Gelasu, Gezhasu • Konkani: ಚಿನಿಕಣಂಗ chinikananga, कणंग kananga • Malayalam: ചക്കരക്കിഴങ്ങ് cakkarakkilangu, ചീനക്കിഴങ്ങു chinakkilangu, മധുരക്കിഴങ്ങ് madhurakkilangu, മരക്കിഴങ്ങു marakkilangu, വള്ളിക്കിഴങ്ങു vallikkilangu • Manipuri: ꯃꯡꯔꯥ Mangra • Marathi: रताळे ratale • Mizo: Bahra thlum, Kâwl ba-hra • Nepali: चाकुहि chakuhi, कन्दमूल kandamula, सख्खर खण्ड sakkhar khand • Odia: କନ୍ଦମୂଳ kandamula, କିରି kiri, କିଟି kiti, ଶକର କନ୍ଦ shakara kanda • Punjabi: ਸ਼ਕਰਕੰਦੀ shakarkandi • Sanskrit: किरि kiri, किटि kiti, किटिमूलाभ kitimulabha, सूकरी sukari, वराही varahi, वृद्धिद vrddhida • Santali: sakarkenda • Sindhi: گجر لاهوريِ gajar lahorei • Tamil: சர்க்கரைவள்ளி carkkarai valli, சீனிக்கிழங்கு cini-k-kilanku, வற்றாளை varralai • Tangkhul: meiteipai • Telugu: చిలగడదుంప chilagadadumpa, గెణుసు గడ్డ genasu gadda, కంద గడ్డ kanda gadda, మోహనము mohanamu, తెల్ల దుంప thella dumpa • Tulu: ಕೆರೆಂಗ್ kerengu • Urdu: شکر کند shakar kand • Angami: Rophie
Family: Convolvulaceae (Morning glory family)
Synonyms: Convolvulus batatas, Batatas edulis, Ipomoea edulis

Etymology:
Ipomoea: Derived from the Greek words ips (meaning “worm”) and homoios (meaning “resembling”). This refers to the plant’s twining, vine-like growth habit, which resembles a worm’s movement.
batatas: Derived from the Taino (an indigenous Caribbean language) word batata, meaning “sweet potato.”

Sweet potato provides a plentiful amount of complex carbohydrates, dietary fiber, and vital vitamins. Loaded with Vitamin A (beta-carotene), Vitamin C, potassium, and antioxidants, it enhances immunity, fosters eye health, and aids in regulating blood sugar levels. It is inherently gluten-free and a perfect choice for individuals adhering to healthy, plant-based eating plans. There are studies which reveals Sweet potato extracts slow breast and lung cancer growth.

The edible tuberous root has a smooth skin with variable colours like red, purple, brown and white whereas the flesh colour ranges from white, yellow and orange to purple.

Edible leaves

It can be eaten raw(certain varieties), boiled, roasted and a cooked vegetable. While the easiest method to consume these are boiled, the traditional way in Kerala used to be to leave them in the charcoal after cooking the dishes(roasted method). Once, a friend gifted me a delicious chocolate-flavored fudge. Later, she surprised me by revealing the main ingredient—sweet potato! We can even consume the tender leaves and make some yummy stir fry or can be added to our mixed greens dishes. The tubers are also used as a source if starch, glucose syrup, abd alcohol we well as for canning, dehydrating and the production of flour.

Ornamental varieties of sweet potato. The leaves are edible but the tubers are not as tasty as the tuber varieties.

It is also fed to cattle, pigs and fowl as a source of high-carbohydrate feed.

Pic courtesy – Celine K Antony

Recipes

Additional reading-

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