10 Supplements You Don’t Need on Carnivore (According to Dr. Ken Berry)
Who is Dr. Ken Berry?
Dr. Ken Berry is a board-certified family physician with over 20 years of clinical experience. He’s known for challenging mainstream nutrition myths and advocating for low-carb, ketogenic, and carnivore diets built around whole, real foods.
Through his wildly popular YouTube channel and bestselling books, he breaks down complicated medical topics into plain English — and isn’t afraid to call out nonsense when he sees it.
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If you want to go deeper into his work, these books are foundational:
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Carnivore Cure (Foreword by Dr. Berry)
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🎥 The Video: 10 Supplements You Can Stop Buying
In this video, Dr. Berry dismantles the myth that carnivore or keto diets are “expensive.”
His argument?
They’re only expensive if you’re still buying an entire pharmacy aisle.
Here are the 10 supplements he says you can skip.
🥩 Patty Prime Breakdown
Let’s translate this into ribeye language.
1️⃣ Calcium Supplements
In the 80s and 90s, doctors handed these out like candy.
Turns out… they don’t strengthen bones the way we thought.
On a whole-food keto or carnivore diet, you’re getting calcium naturally — especially if you’re eating bone broth and real food.
Translation: Save your money.
2️⃣ Daily Probiotics
Unless you just nuked your gut with antibiotics, you probably don’t need a daily probiotic.
If you’re eating real food and ditching processed junk, your microbiome handles itself.
No $60 capsule required.
3️⃣ Vitamin C
This one shocks people.
Dr. Berry explains that when you lower carbohydrate intake, your body requires less vitamin C.
There are no documented scurvy outbreaks in people eating properly formulated carnivore diets.
So no, you don’t need orange-flavored chewables next to your steak.
4️⃣ MCT Oil
Keto marketing’s golden child.
According to Dr. Berry? Not mandatory. Not magical. Definitely not necessary.
You can do keto or carnivore perfectly without pouring expensive oil in your coffee.
5️⃣ Fiber Supplements
This one makes dietitians twitch.
Dr. Berry points out that many people with digestive problems improve when they remove flour and ultra-processed carbs — not when they add more fiber powder.
If your digestion improves when you remove processed carbs… maybe the fiber wasn’t the hero.
6️⃣ Fish Oil Capsules
If you’re eating fatty fish, sardines with bones, or cod liver, you don’t need fish oil pills.
Capsules ≠ superior to real food.
7️⃣ Green Powders
Ah yes. Dehydrated lawn clippings in a tub.
Dr. Berry says there’s zero evidence carnivore or keto requires green powders.
If you’re thriving on meat and whole foods, skip the swamp smoothie.
8️⃣ Collagen Powders & BCAAs
If you’re eating meat — especially connective tissue, cartilage, and bone-in cuts — you’re already getting collagen-building nutrients.
Eat the sardines. Eat the gristle. Skip the tub.
9️⃣ Multivitamins
This is where it gets spicy.
Dr. Berry explains that many multivitamins contain synthetic forms your body doesn’t utilize efficiently.
On a properly formulated keto or carnivore diet?
He says you’re already covered.
🔟 The Only “Supplement” He Recommends?
Liver.
Beef liver. Chicken liver. Goose liver.
Liver is nature’s multivitamin.
And if you absolutely can’t stomach it?
He recommends desiccated liver capsules.
🥩 The Big Takeaway
Keto and carnivore aren’t expensive.
Buying 10 bottles of unnecessary supplements is expensive.
Stop funding the supplement industry.
Start funding your butcher.
🎥 Watch The Full Video Here
📚 Recommended Reading
If you appreciate Dr. Berry’s no-nonsense style, these books are essential:
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Final Patty Prime Thought
If your grocery bill includes more capsules than calories…
you might not need more supplements.
You might just need more steak.
