Jenna Jameson is among the keto diet's fiercest defenders.

The 44-year-old Las Vegas native took to Instagram Wednesday with a bikini shot showcasing her svelte figure, which she credits to '10 months living the #keto lifestyle,' leading to a loss of 80 pounds.

In the shot, the adult film alum showed off her toned figure in a lime green bikini connecting with chains through hoops, and accessorizing with a bandanna tied on her head.

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Sleek: Jenna Jameson, 44, took to Instagram Wednesday with a bikini shot showcasing her svelte figure, which she credits to '10 months living the #keto lifestyle,' leading to a loss of 80 pounds

'Easy? It is now. Sustainable? Absolutely,' the 5ft7 blonde bombshell wrote to her 389,000-plus Instagram followers. 'Keto has a lot of critics, but always look behind their anger towards this way of life. There is always something for them to gain by trashing it.'

The mom-of-three - who has a one-year-old daugh