Since you asked so nicely...
"For health reasons" means firstly, to reduce blood cholesterol. Unlike me, she is unable to fully metabolise cholesterol, and purge it from her system. She is also unable to take much in the way of garlic (which has enzymes to dissolve cholseterol and plaque deposits in arteries) and must therefore reduce intake accordingly. I did not say she was becoming a VEGAN, merely generally vegetarian. I seriously doubt that after 45 years of eating real food, she will ever fully discount chicken and tuna from her diet (staple meats) and she has expressed a growing interest in seafood in general. Good news for me - I LOVE seafood! Now, if I can only get her to try sushi and sashimi...
Spiritual reasons - there is a common belief that "factory farmed" cattle and other livestock are able to sense what is to happen to them, and there is a "persistence" to an area of the death throes of the ones who have gone before. This is not a viewpoint that advocates STRICT vegetarianism, but merely the need to stay away from factory farmed livestock - "free range" is preferred, and you can hunt it up yourself if you are good enough.
The advantage to hunting (for good hunters) is that your prey is dead and on the ground before it has a chance to realise its fate. If you have ever had to eat something you had to track from blood spoor, you know what I'm talking about. A failure to instantly kill your prey results in adrenaline and hormones from the stress reaction being dumped into the tissues, which results in the storied "gamey" taste and stringy texture. You can spot an excellent hunter by cutting venison loins with a fork...
FFZ