say more please
I think if your goal is rapid weight loss it might work fine, but I think for long-term more vegetarian diet might be better.
Red meat is generally not that good for you. Processed meat is basically packaged garbage.
If you do keto with mostly white meat, fish, nuts, and olive oil, combined with huge amount of veggies, you're probably going to be healthy.
What I see as the most critical is the long term lack of fruit. Fruit contain a lot of vitamins that you might lack on keto.
If you ask me paleo is probably the better diet, considering it forbids processed meat, grains and alcohol. It's basically keto as described above with fruit.
I think you pretty much have to do calories counting, at least at the start, until you get to know how much calorie something is. Probably not suitable for long-term, as it gets tedious. But good to cut on snacking etc. Don't overdo your calorie deficit, as it can slow your metabolism too much.
One thing that kinda works for me, is eating food high on satiety index.
I drink this smoothie everyday https://www.foundmyfitness.com/reports/micronutrient-smoothi..., but you have to drink it slowly and best to use a straw not to destroy your teeth. I prefer smoothie form because I wouldn't be able to eat that many greens otherwise. (Also numbers she gave is for 2 smoothies) It's about 500kcal and pretty satiating. Without fruits, you could fit it into keto just barely and you can skip the apple and banana, but I would stay with blueberries as they are super good food.
Apart from the smoothie, I eat some kind of meat + veggies for lunch, and I stick to the eggs for dinner + I finish my smoothie (I drink 2/3 for breakfast). So I am not following a vegetarian diet, but I added a lot of veggies.