Kylie is attempting to trademark her daughter Stormi's name [Photo:]

Kylie Jenner's famous sisters have revealed her reasons for not breastfeeding daughter Stormi Webster and deciding to give her formula milk instead.

Khloe Kardashian joined Kourtney for her Poosh video series to discuss motherhood and revealed why Kylie's decision made her "feel great about not breastfeeding."

The 35-year-old Keeping Up With The Kardashians star said she struggled with feeding her daughter True Thompson and asked Kylie about why she chose formula.

Speaking about her difficulties, Khloe said she turned to her sisters for help and guidance.

Khloe said: "I asked Kim, and I knew Kylie wasn’t going to breastfeed."

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She then went on to detail what formula Kylie used and why she chose to follow her with that decision.

The 22-year-old billionaire make-up mogul apparently decided that she would not breastfeed Stormi, who is now two years old, and looked to Germany for a formula that would be the ideal replacement.

Khloe continued: "That was her [Kylie’s] choice from the start, and she found HiPP formulas from Germany.”

Khloe went on to say that she felt this formula was an "awesome" choice and that she turned to it herself as it helped her daughter True as well.

The Good American fashion owner said: "True had really bad acid reflux and there’s a kind that is thick and it works to coat parts of her oesophagus and stomach."

Kylie recommended the formula, which she had been buying from Germany, and Khloe said her doctor made her feel happy that choosing formula was not failing her daughter.

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Khloe said: "She made me feel so great about not being able to breastfeed."

The reality star said that "so many people" had said that her breastfeeding issues were down to her “not trying hard enough.”

Khloe now feels that her and Kylie's parenting choices have been justified and that she is happy at how it has worked out in the end.