High HbA1c in carnivore dieters likely reflects red blood cell lifespan, not poor blood sugar control.
Original: Layne Norton Warns: The Carnivore Diet Causes Diabetes
TL;DR
Current evidence suggests elevated HbA1c in carnivore dieters does not indicate diabetes but may reflect longer red blood cell lifespan and improved health.
Quick Answer
No, the carnivore diet does not cause diabetes. The claim is based on misinterpretations of HBA1C and fasting glucose levels, which can appear elevated in healthy individuals due to longer red blood cell lifespan, not actual hyperglycemia. Carnivore dieters often show improved metabolic health, and there is no documented case of someone developing diabetes solely from following this diet.
Claims (10)
1. Eating a lot of saturated fat might make your body less responsive to insulin and cause fat to build up in your liver. If you also eat a lot of protein, it could push your body to make more sugar, which might raise your blood sugar—especially if you're prone to it.
2. If your red blood cells live longer or shorter than average, your A1C test might not give a true picture of your average blood sugar levels.
3. If your red blood cells live longer, they soak up more sugar over time, which can make your HbA1c blood test go up — even if your average blood sugar hasn't actually changed.
4. Type 2 diabetes means your blood sugar stays too high over time, and doctors check this with two tests: one after you've fasted and another called HbA1c that shows how much sugar has been sticking to your red blood cells over the past few months.
5. Doing really intense endurance workouts might raise your blood sugar levels and make it look like you have diabetes, even if your body is actually super healthy.
6. Eating only animal foods might reduce body-wide inflammation, keep blood sugar steady, and give you lots of important nutrients—all of which could help your metabolism work better.
7. If your body is healthier and your red blood cells live longer, your HbA1c blood sugar test might show higher levels — not because your blood sugar is high, but because the sugar has more time to stick to older red blood cells.
8. Your body can make all the sugar it needs, even when you're doing intense exercise like marathon training, so you don’t actually have to eat carbs to stay healthy.
9. Eating only animal-based foods might help reverse type 2 diabetes for some people, leading to better blood sugar control instead of making it worse.
10. HbA1c shows how much sugar has been sticking to your blood cells over the past few months — it's like a long-term blood sugar report card.
Key Takeaways
- •Problem: Some people think the carnivore diet causes diabetes because certain blood tests like HBA1C appear high in those who follow it.
- •Core methods: Understanding how HBA1C works, recognizing the difference between glycation and glycosylation, and knowing how red blood cell lifespan affects test results.
- •How methods work: HBA1C measures sugar damage to red blood cells over their life. Healthier people have longer-lived red blood cells, so more sugar sticks over time—even if blood sugar is normal. This makes HBA1C look high without actual diabetes. Glycation is random sugar sticking; glycosylation is a controlled body process—they’re not the same.
- •Expected outcomes: People on the carnivore diet usually have normal fasting glucose and improved metabolic health, not diabetes. Some lab values may look concerning but are misleading due to better health.
- •Implementation timeframe: [Not specified in transcript]
Overview
The controversy stems from nutrition expert Layne Norton asserting that the carnivore diet leads to diabetes, citing elevated HBA1C and fasting glucose in some adherents. The video addresses this by evaluating the scientific validity of these biomarkers and the physiological effects of a zero-carbohydrate, high-fat, moderate-protein animal-based diet. It introduces key concepts—glycation vs. glycosylation, red blood cell turnover, and insulin dynamics—and uses them to challenge the claim, arguing that apparent abnormalities in lab values are artifacts of improved health, not pathology.
Key Terms
How to Apply
- 1.Step 1: Measure fasting glucose and HBA1C to assess metabolic health, but interpret HBA1C in context of overall health and inflammation levels.
- 2.Step 2: Evaluate whether elevated HBA1C could be due to longer red blood cell lifespan by considering lifestyle factors like low inflammation, absence of chronic disease, and high nutrient intake.
- 3.Step 3: Differentiate glycation (measured by HBA1C) from glycosylation (a normal enzymatic process) to avoid misinterpreting lab results as pathological when they may reflect improved cellular health.
Accurate interpretation of blood sugar markers that avoids falsely diagnosing prediabetes in metabolically healthy carnivore dieters, leading to better-informed health decisions based on context rather than isolated lab values.
Claims (10)
1. Eating a lot of saturated fat might make your body less responsive to insulin and cause fat to build up in your liver. If you also eat a lot of protein, it could push your body to make more sugar, which might raise your blood sugar—especially if you're prone to it.
2. If your red blood cells live longer or shorter than average, your A1C test might not give a true picture of your average blood sugar levels.
3. If your red blood cells live longer, they soak up more sugar over time, which can make your HbA1c blood test go up — even if your average blood sugar hasn't actually changed.
4. Type 2 diabetes means your blood sugar stays too high over time, and doctors check this with two tests: one after you've fasted and another called HbA1c that shows how much sugar has been sticking to your red blood cells over the past few months.
5. Doing really intense endurance workouts might raise your blood sugar levels and make it look like you have diabetes, even if your body is actually super healthy.
6. Eating only animal foods might reduce body-wide inflammation, keep blood sugar steady, and give you lots of important nutrients—all of which could help your metabolism work better.
7. If your body is healthier and your red blood cells live longer, your HbA1c blood sugar test might show higher levels — not because your blood sugar is high, but because the sugar has more time to stick to older red blood cells.
8. Your body can make all the sugar it needs, even when you're doing intense exercise like marathon training, so you don’t actually have to eat carbs to stay healthy.
9. Eating only animal-based foods might help reverse type 2 diabetes for some people, leading to better blood sugar control instead of making it worse.
10. HbA1c shows how much sugar has been sticking to your blood cells over the past few months — it's like a long-term blood sugar report card.
Related Content
Claims (10)
HbA1c shows how much sugar has been sticking to your blood cells over the past few months — it's like a long-term blood sugar report card.
If your red blood cells live longer, they soak up more sugar over time, which can make your HbA1c blood test go up — even if your average blood sugar hasn't actually changed.
If your red blood cells live longer or shorter than average, your A1C test might not give a true picture of your average blood sugar levels.
Eating only animal-based foods might help reverse type 2 diabetes for some people, leading to better blood sugar control instead of making it worse.
Eating only animal foods might reduce body-wide inflammation, keep blood sugar steady, and give you lots of important nutrients—all of which could help your metabolism work better.