I don't eat beef or pork. I eat vegetarian cheese and drink almond milk, so basically no cow products. I hope to become vegetarian one day.
I may make a slow-cooker pot roast every 4-6 weeks and may grill a burger once a month or so in the summer, but that's about it for beef. I make buffalo meat chili a couple times during the winter. What I've noticed though throughout my life is that your inherited genes have more to do with your health and longevity than anything you eat. Every fall my Dad and his brother would slaughter a steer they had grown, so beef was a constant around here. Neither my Dad or mom excersiced even a little bit and every night for decades they had a couple of Manhattans.
My Dad was one of 14 kids.1 died within its first year. One in a car accident...and one was hit by lightning while farming. One brother died at 84. All the others lived well into their 90's and one hit 101. All were beef eaters...none were excersicers...but none were smokers either. My mom being from a different family line but the same lifestyle made it to 93. Her mom stroked out at 66 but was a smoker.
Two brothers from one eastern Colorado family married two of my Dad's sisters. One brother that smoked died at 54 while running a crane, and one at 77. I'm not aware of any of the 18 kids in that family that made it past about 82. So in my experience DNA is the primary indicator in the possibility of a long life, environmental issues such as smoking, drinking and drug abuse second and food choices after that.
I was veggie for 9 years, but got anemia quite badly. My doctor was unsympathetic to my plight and told me I needed to eat meat or have an injection which wasn't vegetarian either. I ate a steak.
Now I eat a lot of meat substitute products, almond milk or water instead of milk and have a great collection of vegan recipes which I use at home. I know more about nutrition and would love to be vegan, but at the moment it's not something I'm working at seriously I'm afraid. As vegan becomes more popular I hope it becomes easier, cooking for one is a bore.
I do also love good quality meat. Venison, grass fed beef, free range organic chicken. But I probably eat these once a week at most.