It's good that people are appreciating good health and want to invest in attaining and maintaining good health.
Of course it would be good if one can have good health in the mind and in the body.
While, healthy mind without a healthy body is totally fine.
The greatest yogi doesn't necessarily must have a fit and illness-free physical body, but the mind has no attachment or identification towards the impermanent selfless physical body.
Healthy body without a healthy mind is something else.
Do not loose the health of the mind while trying to achieve the health of the body.
Health freak is not what yoga is about.