Color has very little to do with the health of a mouse.

There are several colours that DO have problems though.

Recessive yellow, can become obese, and are tumor magnets.

Brindles, can also become obese incredibly easily

X-brindles have wobbles and balance problems, the males of this colour DO NOT survive past weaning

Dominant yellow has obesity, and sterility problems

Almost all of these are directly linked to one another genetically. And all of the health issues are directly linked to the color genetics, and are caused by the mouse being that colour, and virtually no other influences can prevent it.

Failure to thrive (other than male x-brindles) is usually just from a bad line, not linked to colour.

Facts of the day!