Dec 19 (Reuters) - Conagra Brands CAG.N maintained its annual sales and profit forecasts on Friday, as pressured consumer spending and stiff competition weigh on demand for its pantry staples such as Slim Jim meat snacks and Act II popcorn.

The company continues to expect annual net sales between a 1% decline to a 1% rise, and sees annual adjusted profit per share between $1.70 and $1.85.

Its quarterly revenue fell 6.8% to $2.98 billion, in line with analysts' average estimate, according to data compiled by LSEG.

(Reporting by Neil J Kanatt in Bengaluru; Editing by Leroy Leo)

((Neil.JKanatt@thomsonreuters.com))