A brainy 11-year-old Texas girl has just made a sweet $11m (£7.6m) deal with 55 Whole Foods stores to carry her brand of lemonade.

Mikaila Ulmer's BeeSweet Lemonade will be carried by stores in Texas, Oklahoma, Arkansas and Louisiana. Mikaila won $60,000 (£42,000) in seed money when she appeared on ABC-TV's Shark Tank, which pits innovators' ideas against one another to win a pool of funding.

After the show she served lemonade to President Obama, was a part of Google's Dare to be Digital campaign, and won a number of awards for food and entrepreneurship.

She uses a tasty mint, flaxseed and honey lemonade recipe she inherited from her great-grandmother, and gives a portion of her products to foundations that rescue bees.

Mikaila thought up the idea for BeeSweet when she was four and stung by bees — twice. "It was painful. I was terrified of bees," she said in an interview with NBC News.

But then she began to study them and "something strange happened. I became fascinated with bees." That's when she started cooking up a plan to use her great-grandmom's lemonade — with honey — to raise money to help the bees. All that's left now is the buzz about Mikaila's drink.

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