A successful YouTuber and blogger who said a vegan lifestyle cured her breast cancer has unfortunately passed away.

Mari Lopez was the aunt to Liz Johnson and worked alongside her for their YouTube channel. Liz recently revealed that she passed away after it spread to her blood, liver and lungs.

The pair had over 11,760 subscribers and promoted the life of a vegan and their faith in God. The two came together to find vegan meals that could potentially 'heal' Mari's cancer.

In one video, Mari speaks about ''the lemon-ginger blast'' that helped her ''remove inflammation'' from her body. However, she admitted to experiencing food withdrawals because of the 90-day juice cleanse.

She also said that cancer treatment was not for her and decided to reject her doctor's advice.

She said:

"It's my choice, I've been okay, I haven't died, I haven't gotten to the hospital... I am going to continue on this path of going natural.

"It's over, it is done with, I am healed. I feel it in my spirit and in my body."

When Mari passed away, she had stuck to a vegan lifestyle throughout her struggles with her cancer.

Liz spoke to Babe and said:

''My family is not familiar with that style of living… What happened was, as Mari was living with my mom, my mom started to tell her that she needed to eat meat now''.

Liz believes that her aunt, Mari, died from eating meat and especially from meat that was cooked in the microwave.

Mari requested that all videos from their channel speaking about veganism as a cure should be removed.

However, despite her aunt's wishes, Liz refused and she still believes in the power of veganism.

Since Mari's death, Liz has disabled comments on her YouTube channel and has released a new video called ''The Truth About Mari - CANCER, JUICING, & FAITH''.

You can watch the video here.