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You love how you feel. Your clothes fit, your joints are quieter, and the afternoon crash is gone. But a small voice keeps asking whether this is safe for the long haul, especially now that you're past 50. That's a fair question, and you deserve a straight answer.
Here it is. Nobody can honestly tell you strict carnivore is proven safe long term, because the long-term research on it is limited. What we do have is a lot of people doing well, a few clear warning signs, and a simple way to keep an eye on things. Long-term safety isn't something you settle once. It's something you check, with your doctor, about once a year.
If you want a starting point for your daily numbers, our free macro calculator can give you protein and fat targets based on your goal weight. This is not for everyone. Talk to your doctor first if you have high blood pressure, kidney or heart problems, diabetes, are pregnant, or take medicine.
Why worries often start with a "bad" blood test
Here's a story I hear a lot. A woman has lost real weight and feels great, then her bloodwork shows higher cholesterol and her blood pressure reads high. Her doctor mentions statins and she panics. Three questions are worth asking first.
- Is she actually eating enough? A day of cheese slices and a handful of nuts isn't carnivore. It's undereating, and undereating stresses the body. Stress can push blood pressure up and muddy lab results.
- Is she losing weight fast right now? Many people see LDL rise during active weight loss, on any diet. For many, it settles closer to goal weight. That's a reason to retest, not a reason to ignore it.
- Was the test done right? If the lab asked for a fasted draw, that means water only, usually for about 12 hours. Tea with a splash of milk an hour before counts as food. Keep taking your prescribed medicines unless your doctor says otherwise.
One test, taken in the middle of big changes, doesn't tell the whole story.
Normal long-term changes (usually not a red flag)
These come up often and are worth mentioning to your doctor, but they don't usually call for alarm on their own:
- LDL going up during weight loss. Common, but honestly unsettled. I'll come back to this.
- Triglycerides dropping and HDL rising. Many people see this. A triglyceride to HDL ratio under 2 is generally a favorable sign.
- Slower weight loss over time. After the first water week, 0.5-1 lb a week is a good pace past 50. Slowing down isn't failure.
Signs worth a doctor visit
These deserve a booked appointment, not a wait-and-see:
- Home blood pressure that stays high when averaged over 1-2 weeks
- Hair thinning, feeling cold all the time, or exhaustion that doesn't lift after the first couple of months
- Muscle loss you can see or feel, like trouble getting up from a chair
- Ongoing constipation that hurts, or any blood in your stool
- Kidney or liver values moving in the wrong direction on your labs
- Values that come back too low, not just too high. A very low A1c, low sodium, or a sudden drop in blood counts deserves a look too.
And some things don't wait at all. Chest pain, fainting, severe dizziness, or trouble breathing mean urgent care today. Don't adjust your food and see how it goes.
Measuring blood pressure the right way
A single reading at the clinic means very little. A home cuff gives you a far better picture.
- Sit quietly for at least 5 minutes, feet flat, arm supported at heart level.
- Take two or three readings a minute apart and note the average.
- Do it morning and evening for 1-2 weeks.
- Bring the log to your appointment.
If you already take blood pressure medicine, any change to the dose is your prescriber's decision. Share your home log and let them adjust.
The honest truth about cholesterol
I won't tell you high LDL is proven safe, because nobody can say that yet. I also won't tell you statins are a scam.
What helps is a better conversation with your doctor. A full lipid panel is the start. From there, three tests are worth asking about together:
- ApoB, which counts the particles that carry cholesterol
- Lp(a), a mostly genetic marker you usually only need to test once
- A CAC scan, which looks for calcium already built up in your heart arteries
If your doctor recommends a statin, nobody can make you take it, but please don't refuse out of fear either. Ask what your overall risk looks like, what these extra tests show, and when a retest makes sense. That's a decision you make together.
The quiet risk after 50: not enough protein
From my experience coaching, the bigger long-term problem I see isn't too much meat. It's too little. Appetite often drops, and women past 50 can drift into eating far less protein than they think.
Aim for 0.8-1.0 g of protein per pound of goal body weight, split into meals of 30-40 g each. That's roughly 5-6 oz of cooked ground beef per meal. You don't need to count calories for the first 8 weeks, but you do need to actually eat. Our guide on how much protein you actually need walks through the math, and if you're over 60, this piece on muscle and bone density explains why it matters even more.
One more note: liver is great, but keep it to 4-8 oz a week. Vitamin A and copper add up.
A simple yearly check-in
Once a year, around the same month, do this:
- Bloodwork: full lipid panel, A1c, kidney and liver function, complete blood count, and thyroid if your doctor agrees. Ask about ApoB and, once, Lp(a).
- Blood pressure: a 1-2 week home log before your appointment.
- Body check: waist measurement, weight, and a simple strength test like standing from a chair five times.
- Food audit: write down 3 normal days. Are you hitting your protein? Is it real meat and eggs, or mostly cheese and snacks?
- How you feel: energy, sleep, digestion, mood. Write it down.
Bring all of it to your doctor. You're bringing data to a partner.
Nobody can promise long-term safety. But eating enough, testing properly, and checking in every year gives you something better than a promise. It gives you your own evidence.
I'm not a doctor. I've researched this deeply and worked with many people, but I'm not your doctor. If you have health conditions, take medications, or need specific guidance, talk to someone who knows your full medical picture. Everything I write is educational based on research and what I've seen work. Your situation might be different.