Diet Very low carb · High fat · Hard

Keto

A very low-carbohydrate, high-fat approach that pushes the body to run on fat instead of glucose. Structured and demanding, especially at the start.

Goal
Weight lossBlood sugarMore energy
Approach
Low-carb

How it works

  • Carbs kept very low (often under ~50g a day)
  • Fat becomes the main energy source
  • Moderate protein; most fruit, grains and sugar are out

What people report

General, not from Undiet data

The first week is widely reported as the hardest ("keto flu"); many say appetite settles after.

In Undiet

Keto is an eating pattern in the Undiet catalog. Marking it records what you are already doing: a self-report marker, never a recommendation. From that day it is a period on your timeline, with your weight and how the days felt drawn across it, and what happens after you stop kept as a period of its own.

Mark it in UndietFree on iPhone and Android

Related programs

All 98 programs in the catalog

On iPhone and Android

Start with today.

Free on iPhone and Android. Mark Keto and the first period of your timeline begins.

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