To provide the body with energy, you will increase the consumption of natural healthy fats. You will eat dairy fat, animal fat and plant-derived fat. You will avoid low-fat dairy products because they are usually rich in artificial sugar. Then slowly, later on, you start selectively adding carbohydrate to your diet, in the amount tolerated so that you will not start to gain weight again.

But with all that said, there are a few big macronutrient patterns that tend to emerge within the Paleo/keto/ancestral health community because they work well for a lot of people and offer some kind of structure for people just starting out. For example, a lot of people adapt Paleo food choices to a ketogenic (keto) macronutrient pattern. But there are a lot of Paleo-friendly macro choices that aren’t anywhere near keto. Paleo is a way of thinking about food that could theoretically be adapted to a wide range of macros, while keto is a specific set of macronutrient ranges – you can combine the two, but you can also do Paleo in a non-keto way.
Hence low carb diets should emphasize larger amounts of fat, but the source of this dietary fat is critical as there are plenty of bad fats out there. A good rule of thumb is to stick to naturally-occurring fats from nature, rather than chemically processed ones created in a factory. As an example, organic grass-fed butter and margarine are poles apart regarding their respective health merits. And hopefully, you know that butter is the healthy one!
Long-term effects can include constipation, diarrhea, lack of energy, iron deficiency, vomiting, and kidney stones. Not to mention, eating such a high-fat diet like keto can also contribute to high triglyceride levels, which increase your risk of heart disease and stroke, as well as high cholesterol. Lastly, going keto can also contribute to a weakened immune system (since carbs help boost immunity) and chronic inflammation, says Zeitlin.
I have nothing against low-fat diets. However, I doubt that the emphasis on low-fat, low saturated fat, in particular, is based on good scientific evidence. Furthermore, I believe that the overemphasis on low-fat may have caused consumers and manufacturers to choose foods that may be potentially harmful and could have contributed to the so-called obesity epidemic and increased prevalence of type 2 diabetes.
Low carb eating is a broad term that can be applied to many different approaches and eating plans. It can be based on just about any number of carbs that are less than what you would typically eat. Every low carb diet out there from South Beach to Atkins will give you a different number of carbs to shoot for. So if you want to eat low carb, but are not interested in a Keto diet, you will need to do your research on the many, many low carb diets available on the market today.
At the end of the day, “you want to create a diet for yourself that feels comfortable for you to commit to for the long-term, so you don't gain and lose, gain and lose—called weight cycling—and feel like you are constantly dieting.” The first can invite health problems (like insulin resistance); the latter is, well, not fun (or all that healthy, mentally speaking).
Low carb wasn’t designed to put people into nutritional ketosis (although many of you might actually be in ketosis when you’re eating a low carb diet).  Low carb was mainly designed to restrict your carb intake.  Keto, on the other hand, is designed to put you into nutritional ketosis.  And it just happens that in order to get into nutritional ketosis, you decrease your carb intake and increase your fat intake.

As for me, I'm thankfully allowed to eat the full spectrum of fruits, vegetables and whole grains again. Going on the ketogenic diet made me realise I still held onto the belief that fats are the enemy. But good fats are vital for optimal health, so I'll be keeping the olive oil dressings and lashings of avocado in my diet, while definitely eating less bacon.
I too love your site. Your keto recipes are the best! ….I’ve been on Keto for over a year now and have lost 100 pounds. I still have another 100 to go, but I’m still losing……. Another thing to look at is the influence that the sugar industry has had on today’s high carb diets. When food went low-fat, they added extra sugar. The sugar industry has a lot of money and lobbyist tied up in the way Americans eat. They really don’t want us to know that doing without sugar and eating more fat is the healthy way to go.
You’re not losing because you’re not in ketosis, the body is burning the extra carbs you eat and because you’re not eating enough you might feel lethargic. I’m a guy, I started at 145kg am now at 139kg after two-three weeks, zero exercise, occasional lifting dumbells once a week if that, rest of the time sitting in a chair, never go out and it just keeps dropping. I had 2 days where I felt terrible too, didn’t stop me. You can deff. stay at -20 carbs unless you’re vegan then it would be much harder I think. Most of the time for me it’s fish, lean meats, all kinds of cheese although I try to eat mozarela mostly, green veggies and low carb bread. In the morning I usually have low x2 carb bread slices (3.7g each) on toast with butter and a slice of cheese, coffee with stevia and milk. For sweet I eat dark choc and whipped cream with stevia and sometimes dark choc on its own, 65/75+ ones, delicious. I have some low carb choc spread too. For snacks I gobble down peanuts mostly, occasional bag of crisp and an ice cream lolly at about 5-10 carbs each, you always have to keep an eye on it and work it out. If you eat 18 grams of high carb in the morning then you have to restrict it later in the day by eating idk meat, eggs and cheese.
This plan has more fat and less protein than the pure carnivore plan, and likely less meat: even fatty meat isn’t all that fatty by keto standards (for example, a nice juicy grilled T-bone is a whopping 38% protein, although you can lower that percentage rapidly by adding butter on top). With keto, you don’t necessarily eat a whole pile of T-bones; it’s more like half a T-bone with a lot of butter and some avocado and spinach salad.

This is how most people do keto – enough wiggle room in the carb count that you can at least have a salad and some cauliflower pizza crust, but not enough wiggle room to actually go out of ketosis. Unlike the carnivore plan, the goal of garden-variety isn’t to eat only meat and avoid plant foods; the goal is to get a specific set of macros (high fat, very low carbs).


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Hi Sandy, I’m not a doctor so cannot give medical advice, but do have years of research and experience in this lifestyle. Kidney failure can happen due to excessive protein intake, which was more prevalent on older versions of the Atkins diet. This is a common misconception with low carb and keto diets – that they have to mean high protein – and they shouldn’t be. If you keep your protein in check, it shouldn’t be an issue. But, I would definitely consult with your doctor since you have had issues with this.
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