United Kingdom, Feb. 18 -- Jax Taylor is "the healthiest he's ever been".

The 46-year-old reality TV star has managed to transform his life, following his departure from The Valley and focusing on his health and wellbeing.

A source told Us Weekly: "He's doing really well. Jax has been sober now for over one year and three months. He had even stopped smoking weed and it's been six months."

Jax - who has Cruz, four, with his ex-partner Brittany Cartwright - has "completely transformed his life" over the last year.

The insider explained: "He doesn't go out and is very intentional with who he spends his time with."

Jax now "lives a very quiet life and spends a lot of his time with Cruz and close friends that are on a similar path".

The ...