Kim Kardashian lost her baby weight from Atkins, she recently revealed.

Kim Kardashian confessed on Twitter that she got her post-baby body after having North West due to cutting out carbs on the Atkins diet.

However, the Atkins diet is controversial-and some are worried that Kim isn't safe, and is risking her health for weight loss.

After giving birth to North West in June, speculation has been swirling about how Kim will lose her post-baby weight. Kim lost a lot of weight fast-and she's revealed her diet secret on Twitter.

Kim responded to a fan on October 13 who asked her how she's lost so much weight after giving birth:

I've actually been doing the Atkins diet & luv it RT @AlwaysKhloverxo: Need to know @KimKardashian secret on how she's lost so much weight

— Kim Kardashian (@KimKardashian) October 13, 2013

US Weekly reported, "In August, Kim got frustrated because she hit a plateau, even though she was eating mostly proteins and veggies. Kim eliminated carbs completely. She's working out here and there, but it's mainly about the food, Atkins-style."

The inside source added,"Kim's determined to stick to the plan. She finally feels good again.

The Atkins Diet is a very low-carb diet. The diet reduces carbs in four phases, gradually reintroducing small amounts. Critics of the Atkins Diet say that the lack of carbs can be harmful to insulin levels and dangerous for the body. Atkins results in ketosis, which is related to a buildup of ketones in the body. High fat levels from long-term Atkins can also clog arteries-which may be why its founder, Richard Atkins, died of a heart attack.One website, AtkinsExposed.com, says the following about Atkins.
"Atkins' followers risk a number of serious nutritional deficiencies. In fact, some people have become so deficient on low carb ketogenic diets that they almost went blind because their optic nerves started to degenerate.

When cutting calories, it's especially important to eat nutrient-dense diets, but the Atkins Diet presents a double whammy; it restricts the healthiest foods, like fruit, and unrestricts some of the unhealthiest, like meat. Shortly after Atkins' original book was published, the highly prestigious Medical Letter on Drugs and Therapeutics concluded that the Atkins Diet was "unbalanced, unsound and unsafe."As noted in a Medical Times review, Atkins has created a "ridiculously unbalanced and unsound" "hazardous" diet.Twenty-seven years later the Medical Letter offered an update noting that the safety of the Atkins Diet had still "not been established.""
While they're an anti-Atkins website and this is just their opinion, it's still concerning for Kim's health- and North West's as well.

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Do you think Atkins is safe? Are you worried about Kim?