We're omnivores, but usually limit our meat/fish consumption to about 4-6 ounces per day.
We have a teenage granddaughter who has gone vegetarian. The whole family is tolerant and respectful of her choice. But it's worrisome because she's becoming ever more focused on carbs/ sugars and her health is suffering. Quite a dilemma for her parents.
Our gardening/ landscaping goals are shade, privacy, appearance, low maintenance, fresh air, exercise, reducing expenses for food, increasing self-reliance and emergency preparedness. We love fruit, BUT there's no way our health could tolerate all the sugar coming from our fruit trees.
Ideally, our selection of what to grow ought to aim for healthy nutrition (both fruits and vegetables), harvest spread out over 12 months, long season staples we eat a lot of, some short season 'treats', and cultivars selected for best taste, disease/insect resistance, ease of growing, extended picking season, and ease of harvesting.
We hope to grow more than we can eat ourselves and share the excess with friends, family, neighbors, and elderly folks who no longer have gardens or access to home grown fruits.
If local codes permitted we would opt to raise some rabbits, ducks, and/or chickens for protein. But that's a no go for the present.