Jenna Jameson is now intermittent fasting on the keto diet

Earlier this month, Jenna Jameson revealed a 57-pound weight loss on Instagram, noting that she attributes the body transformation to the keto diet.

As Jenna, 44, wrote in her recent post, it's not uncommon for people on the keto diet to also work in some intermittent fasting:

"I absolutely was not sure about this," she said. "Some keto peeps swear by it, others say it’s incredibly hard."

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Jenna says she started intermittent fasting in order to break through her weight-loss plateau, adding that she typically fasts for a 16- to 18-hour period.

"I’ve done it two days now, stopping at 6 p.m. and eating again at 11 a.m.," she says. "This is absolutely doable for me."

Jenna's particular brand of intermittent fasting plan sounds a lot like the 16:8 diet, which involves fasting for 16 hours a day, then eating whatever you want for the remaining eight hours.

A study published in the journal Nutrition and Healthy Aging showed that people did have success with modest weight loss using the plan and also lowered their blood pressure.

Experts say that pairing intermittent fasting with the keto diet might lead to more fat-burning (and weight loss) since both the keto diet and intermittent fasting help the body achieve ketosis, a.k.a. the state where your body burns fat for fuel instead of carbohydrates.

Beyond her weight loss, though, Jenna has also been vocal about how the keto diet has made her feel, saying that she is "happier, smarter, and much more confident" since starting the diet.

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"I also want to let y’all know how much your amazing support means to me," she wrote on Instagram last week. "I know you loved me heavy, and now ... but your journeys inspire me to keep inspiring you."