Jenna Dewan, 40, shows off her phenomenal figure in yellow crop top

STEP Up star Jenna Dewan looks strapping for a magazine shoot.

The actress and dancer, 40, says she feels stronger having gone on the trendy 80/20 diet.

The special diet allows you to have freedom with your food 20 per cent of the time but you must eat healthily for the remaining 80 per cent.

She said: “I don’t deprive myself.

"But I try to choose healthy most of the time.

“It gets you fit so fast, and you just feel stronger.”

The brunette beauty also revealed she works out often – preferring Pilates.

Read the full interview in the March issue of Women’s Health — on sale February 9.

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