Why do people often undereat on a carnivore diet?
Hunger signals are much milder without carbohydrates, so appetite can be subtle. Many people must relearn hunger by using taste and meal satisfaction rather than strong hunger pangs.
Video Summary
Hunger cues on carnivore are milder than with carbs, so many people unintentionally undereat.
Not eating enough dietary fat is a common startup mistake; wild carnivores get ~70–80% of calories from fat.
Fat absorption is limited by bile production (~800 mL produced in ~24 hours); excess fat can cause loose stools.
Coffee and certain sweeteners (sugar alcohols, stevia) often cause diarrhea on a meat-only diet.
Stool consistency is a practical signal: very dry stools suggest full fat absorption; loose, fatty stools suggest malabsorption or laxative effects.
Hunger signals are much milder without carbohydrates, so appetite can be subtle. Many people must relearn hunger by using taste and meal satisfaction rather than strong hunger pangs.
Practitioners note that wild carnivores get roughly 70–80% of calories from fat; while individual needs vary, many on carnivore need far more fat than modern low‑fat guidelines to sustain energy and workouts.
Loose stools often come from excessive unabsorbed fat (bile-limited), stimulant laxatives like coffee, or nonanimal sweeteners that act as laxatives. Reducing those can improve stool consistency.
According to the video, sweeteners can blunt fat loss by signaling sugar to the body and triggering metabolic responses (rebounds or insulin spikes), so eliminating them is recommended.
The video cautions that while some people consider supplements, bile is produced slowly and the body has a natural absorption limit; supplementation may not be necessary and could disrupt natural processes—address underlying intake and triggers first.
"It's very easy to undereat on a carnivore diet; your hunger signals are much more mild and subtle than when you're eating carbohydrates."
It is common for individuals on a carnivore diet to underestimate their food intake because the hunger cues are less pronounced compared to a carbohydrate-rich diet.
Many people may find themselves not feeling hungry for extended periods, leading them to inadvertently undereat.
Despite not feeling hungry, the individual might still enjoy the food when they decide to eat, suggesting that taste can be a better indicator of nutritional needs than hunger signals.
"Not eating enough fat is a very common mistake people make when starting a carnivore diet."
A common issue for those adopting a carnivore diet is insufficient fat consumption, even if they are eating more meat than before.
Carnivores in the wild typically consume 70-80% of their calories from fat, as they prioritize fatty parts of the animals they eat.
It's essential to consume enough fat because it not only provides energy but also contains vital nutrients, including essential fatty acids and fat-soluble vitamins.
"You have a finite amount of bile, and it's not made quickly; it takes about 24 hours to produce around 800 milliliters."
The body has a limited capacity to absorb fat, as bile produced by the liver plays a crucial role in fat digestion.
If an individual consumes excessive fat, they may find that their body cannot absorb all of it effectively, leading to discomfort and digestive issues like loose stools.
It’s important to note that while some people may consider digestive enzymes or ox bile to aid in fat absorption, this may not be necessary and could disrupt the body's natural absorption processes.
"Coffee is a laxative, and when you don't have fiber blocking the pipes, the laxative effect is much more dramatic and noticeable."
Loose stools can be a common issue for those transitioning to the carnivore diet, and the cause often depends on individual dietary choices.
Many people continue to consume coffee while following the carnivore diet, but coffee has a laxative effect, which can lead to diarrhea if not moderated.
Artificial sweeteners, especially sugar alcohols and even stevia, can also act as laxatives, and their consumption should generally be avoided on a strict carnivore diet since they are not derived from animal sources.
If following a strict meat and water regimen or a beef-butter-egg diet, as recommended by practitioners like Dr. Barry, one possible solution to loose stools is to reduce fat intake.
"If you have dry, hard stools, then that means your body's absorbing all the fat; nothing is getting sent out."
Many individuals on the carnivore diet may experience varying results in weight loss, with some hitting plateaus, prompting the discussion around fat absorption.
Normal stools should contain some fat; a lack of fat can mean the body is absorbing enough nutrients. However, if stools are hard and dry, it indicates that excess fat is being expelled.
People may be misled into believing that less frequent bowel movements indicate constipation, but if stools are soft and maintain a healthy consistency, this does not signify an issue.
"If you're drinking coffee, you probably should have diarrhea, and that can mask people who are undereating fat."
For those consuming fat yet still experiencing constipation or dry stools while drinking coffee, caffeine may speed up digestion but can also mask signs of inadequate fat consumption.
While coffee may be part of many social rituals, it can negatively influence energy levels and cause dehydration, which detracts from the benefits of the carnivore diet.
Avoiding coffee altogether or switching to caffeine tablets could help mitigate these effects, allowing individuals to experience more stable energy levels throughout the day.
"It's as important what not to eat as what to eat; you should eliminate plants and fungi that contain defense chemicals."
An important consideration for those adopting the carnivore diet is the inclusion of sweeteners. Many may still use substitutes like monk fruit or stevia, especially if they are also consuming coffee.
Heavy cream in small amounts may be acceptable, but excess reliance on any form of sugar or sweetener can lead to an unhealthy diet.
To achieve optimal health, it's recommended to eliminate all plants and fungi completely, as they often contain defensive chemicals that can interfere with health. The focus should remain on consuming meat, water, and minimal added salt for flavor.
"I lost 23 pounds just by ditching vegetables and increasing the amount of meat I was eating."
The speaker emphasizes the potential benefits of eliminating vegetables from the diet, particularly in relation to weight loss. They shared their personal experience of losing 23 pounds within just ten days by ceasing to eat greens like spinach, kale, and broccoli while significantly increasing their calorie intake from meat.
This process highlights that a dramatic increase in calorie consumption can lead to fat loss, challenging common misconceptions about dieting.
After the initial weight loss, the speaker noted they maintained the same weight for several months but began to visibly transform by gaining muscle and losing fat simultaneously.
"Who wants to eat vegetables? Who in their right mind is going to say, 'I want to eat kale?'"
The speaker critiques the conventional wisdom surrounding vegetable consumption, suggesting that society has conditioned people to think greens are inherently good. They argue that very few people genuinely crave vegetables without feeling a sense of obligation or conditioning.
The ideal scenario mentioned is to lose weight and gain muscle without the need for vegetables, playing into the desire for a diet that is enjoyable and effective.
"Artificial sweeteners inhibit fat loss and can signal your body to think that there's sugar coming."
The speaker warns against the use of artificial sweeteners, claiming they can impede fat loss, particularly by tricking the body into expecting sugar.
Studies are referenced that indicate consuming sweeteners may lead to rebound hypoglycemia and insulin spikes, complicating weight loss efforts.
The speaker stresses that artificial sweeteners are a recent addition to human diets, lacking historical precedence, and therefore may not be essential for health.
"Many people say they are on a carnivore diet but still incorporate sweeteners and other additives."
The speaker discusses common misconceptions people have about their dietary practices, particularly those who believe they are fully adhering to a carnivore diet. Many individuals mistakenly think they are purely eating meat and drinking water while still adding items like coffee and sweeteners.
This reveals that those who struggle with weight loss often still incorporate foods or additives that could hinder their results, reflecting confusion about what constitutes a true carnivore diet.
The mention of frustration and feeling limited is common, indicating a need for clarification and education on what options genuinely align with a carnivore approach.