UPDATE 1-Kellogg's new bets on healthier foods drive profit beat, forecast

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Aug 2 (Reuters) - Cereal maker Kellogg Co topped Wall Street estimates for quarterly sales and profit and raised its full-year outlook on Thursday, betting on its recent acquisition of protein bar RXBAR and Nigeria's Multipro.

Kellogg, struggling with shifting trends as more consumers opt for low-sugar options, protein bars and yogurt for breakfast over cereals, has been buying smaller snack brands that promote healthy eating and expanding in emerging economies.

Kellogg bought RXBAR for $600 million in 2017 and Brazil's Parati for $429 million in 2016. It also made a $400 million investment in Nigeria's Tolaram Africa Foods to enter west African markets.

"This is starting to show up in our net sales and our in-market performance, and puts us in a position to raise our full-year guidance," Chief Executive Officer Steve Cahillane said in a statement.

Kellogg said it expects net sales to rise 4-5 percent in fiscal 2018, and earnings per share to grow 11-13 percent. The company had previously forecast a sales rise of 3-4 percent and earnings per share growth of 9-11 percent.

Its net income rose to $596 million, or $1.71 per share, in the second quarter ended June 30, from $283 million, or 80 cents per share, a year earlier.

Excluding items, Kellogg earned $1.14 per share, beating analysts' average estimate of $1.05, according to Thomson Reuters I/B/E/S.

Net sales rose 5.8 percent to $3.36 billion, topping the estimate of $3.30 billion. (Reporting by Nivedita Balu in Bengaluru Editing by Saumyadeb Chakrabarty)