Keto made easy

Strict, Lazy, Dirty and Medical Keto: The Versions Explained

Every version of keto keeps carbs low enough to raise blood ketones; they differ in how much you track, how much attention you pay to food quality, and whether the diet is a weight-loss plan or a medical therapy.

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The versions at a glance

Version What you track Food quality focus Main use
Standard (strict) Carbs, often protein and calories too Moderate Weight loss, blood sugar
Lazy Carbs only, or nothing (avoid known problem foods) Moderate Weight loss with less effort
Dirty Carbs Low; packaged and fast food allowed Convenience
Targeted Carbs, plus a small carb portion around workouts Varies Athletes and hard training
Medical (classic 4:1) Everything, by weight, under supervision Set by the care team Epilepsy treatment

All of these are ketogenic if they keep ketones raised. Because keto is defined by that result, not a food list, the label matters less than whether the plan works for you and is one you can keep. See Chapter 1.

Standard (strict) keto

Standard keto is what most guides describe: a low daily carb limit, enough protein, and fat to fill the rest of your energy needs. "Strict" usually means you track carbs closely every day and stay under a fixed number.

How low the carb limit should be varies by person. Common numbers are 20 g and 50 g a day, and whether you count total or net carbs changes the meaning of each. See How Many Carbs and Net vs Total Carbs.

KetoDick on this: his 2017 explainers give under 20 g of carbs to start, with some people tolerating up to 50 g (video s_sNd1v8Low; video ffwBPoKxlDI). His 2018 beginners' video sets 50 g of total carbs as the simple rule (video UygKGoP_BtA). He treats extra restrictions such as "strict keto," no grain and no dairy as optional, not as what ketosis requires (video s_sNd1v8Low).

Lazy keto

"Lazy keto" has no fixed definition. It is used in two main ways:

  1. Avoid the obvious carb foods and assume you are under your limit, without logging anything.
  2. Track carbs but not calories.

Both rely on the appetite effect many people report on low carb: when carbs drop, hunger often drops, and people eat less without counting. Whether that is enough for you depends on your appetite and your habits.

KetoDick on this: he gives exactly these two definitions, the first at an assumed 20–50 g of carbs a day, and says both can work (video LbPnm9T0oxc). He says a calorie deficit is still required but calorie counting "may be unnecessary" (from the video), citing studies in which low-carb groups that did and did not count calories ended up about the same (same video). He still recommends tracking carbs and calories while you are learning, so you can diagnose problems later, and says people prone to cheats should avoid lazy keto (same video).

This guide does not cite the specific calorie-counting studies he refers to, so that comparison is his reading. For what the research says about calories on keto, see Fat Loss and Do Calories Matter on Keto?. For how to track, see Tracking and MyFitnessPal for Keto.

Dirty keto

"Dirty keto" means hitting your carb limit with little attention to food quality: fast-food burgers without the bun, processed meats, packaged snacks labelled keto, diet soda.

What it gets right: it shows that ketosis depends on the carb dose, not on the food being "clean." What to watch:

None of KetoDick's videos covers dirty keto by name. His general position applies: there are no banned foods, only doses, and rules about food quality are about health, not ketosis (video ffwBPoKxlDI). See Dirty Keto vs Clean Keto.

Targeted keto

"Targeted keto" means following standard keto most of the time and eating a small, planned portion of carbs around hard workouts. It is aimed at people doing intense training who feel their performance drops on very low carb.

Neither the research this guide cites nor KetoDick's videos set out a targeted keto protocol, so this guide does not give amounts. For carbs and training, see Workout Carbs.

Medical (classic 4:1) keto

The classic ketogenic diet is a medical therapy, mainly for epilepsy. "4:1" refers to the ratio of fat to protein plus carbohydrate by weight. It is planned and monitored by a medical team, and the NIH StatPearls overview covers its clinical uses and how it is implemented (Masood et al.).

This guide names it only so you can recognise it. It is not a weight-loss diet, and this guide does not cover it as a treatment for any condition.

KetoDick on this: he says the 90/6/4 and 4:1 formulations are medical (epilepsy) diets, not weight-loss keto, and objects to articles presenting them as "classic keto" for everyone (video 1JbK1_ClDmY). In the same video he warns, "don't go treating your cancer with keto" (from the video). See The Classic Ketogenic Diet (4:1).

How to choose

  1. Start with your goal. Weight loss, blood sugar, or maintenance all work with standard or lazy keto. Medical keto is only for a condition your doctor is treating with it.
  2. Pick the least tracking you can do well. If you have never tracked food, start by tracking carbs and calories for a few weeks, then decide what to drop.
  3. Keep vegetables whatever version you choose. See What Can I Eat on Keto?.
  4. Change version if it stops working. If lazy keto stalls, tracking for two weeks will often show why.
  5. Talk to your doctor first if you take diabetes or blood pressure medicine, have kidney disease, are pregnant, or have a history of an eating disorder. Any version can change how those medicines act, and close tracking can be hard for some people with an eating-disorder history.

For how keto compares with other low-carb plans, see Keto vs Low Carb and Keto vs Atkins.

Last verified: 2026-10-31