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Keto Diet 101

January 11, 2019
Keto Diet 101 - Lark Health

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Complete with sample keto menus

Eating right is one of the best treatments there is for prediabetes and diabetes. The right prediabetic diet can help you lose weight, lower blood sugar, and prevent or delay type 2 diabetes, but which one is right for you? If low-carb is good, is very-low-carb better? What about a ketogenic, or “keto,” diet?

A keto diet puts your body into ketosis. This diet has been used for nearly a century to reduce seizures in people with epilepsy. Recently, it has gained attention for other possible benefits, including its potential to lower blood sugar and help in weight loss.

The keto diet is literally a fat-burning diet, since it puts your body into a metabolic state called ketosis. That means your body’s main fuel source switches from carbohydrates to fat. The goal can be to burn more fat for weight loss or to reduce the blood sugar swings caused by the foods you eat. The keto diet is very low in carbs, moderate in protein, and high in fat.

What is Ketosis?

Isn’t ketosis an emergency? Not necessarily. Ketosis as the result of a ketogenic diet is one thing. It is quite another thing – and yes, an emergency – if you have diabetic ketoacidosis, or DKA. With DKA, ketosis is not due to a low-carb diet. Instead, it happens when your body is not processing sugar properly and can only use fat for fuel. Without

Why Follow a Keto Diet?

You might choose to follow a keto diet if you are hoping that it could help you lose weight or control your blood sugar. There is some evidence that a keto diet can help with weight loss, possibly by:

  • Reducing the number of calories you eat by limiting your food choices.
  • Reducing hunger because fat and protein are more satisfying than refined carbs.
  • Reducing carb and sugar cravings.

Still, many studies find no difference in weight loss when people follow a low-fat diet compared to a low-carb, ketogenic diet.

You might also follow a keto diet to manage treat prediabetes or manage diabetes. A very low-carb diet may help lower blood sugar levels, glycated hemoglobin (A1C), and insulin resistance.[1] It could also reduce “bad” LDL cholesterol in the short term.

Still, a keto diet needs more research. We still do not know its long-term effects. It does not appear to lead to better weight loss than a low-fat diet over the course of a year or more, and questions remain about its safety for your heart, liver, kidneys, and bones.

There are also concerns about eliminating certain foods for the long term. The following are high in nutrients, such as antioxidants, fiber, and potassium. They have been linked to a lower risk for diabetes and other chronic conditions.

  • Whole grains
  • Many kinds of fruit
  • Beans and other legumes
  • Sweet potatoes and other starchy vegetables

As always before starting any special diet, you should consult your doctor before starting a keto diet.

How Many Carbs on a Keto Diet?

You need to keep your carb consumption very low to stay in ketosis. A very low-carbohydrate ketogenic diet has about 20 to 50 grams of carbohydrates per day. [2] It might get about 5 percent of total calories from carbs.

In comparison, a typical American diet might include 300 or more grams of carbs per day, with 45 to 65% of calories from carbs. A moderately low-carb diet (or “reduced-carb” diet) has about 130 to 300 grams of carbs, or 30 to 40% of calories from carbs.

The rest of your calories come from protein and fat. A traditional keto diet has about 80% of calories from fat and 15% from protein. A high-protein keto diet gets about 60% of calories from fat and 35% from protein. Far more research is necessary, but it seems as though the higher-fat, traditional keto diet may be more effective.[3]

Keto, Atkins, and Paleo – Not the Same!

There is a lot of hype about Atkins, paleo, and keto diets. Maybe you have been trying to decide which one to follow. They all are reduced-carb diets with strict rules, but they have many differences, too.

How to Follow a Keto Diet: What to Eat and Avoid

A keto diet is high in high-fat foods, moderate in high-protein foods, and very low in carbs.

A keto diet prohibits high-carb foods, whether “healthy” or not. That is because having too many carbs will put your body out of ketosis.

Box: making healthy choices. Good fats, good proteins

Sample Keto Menu

If you decide to try a keto diet or you want to see what you might eat if you followed one, these menus can give you a general idea.

Sample Day 1

Sample Day 2

Prediabetic Diet Help

A keto diet may help control blood sugar and it could help you lose weight, but it may not be the healthiest choice for everyone. If you believe a keto diet may be right for you and your doctor agrees, your best option may be to plan to go keto for a while before adding back in those higher-carb superfoods from blueberries and pumpkin to oatmeal and lentils.

Lark DPP can help with your prediabetic diet in a personalized program to lose weight and control blood sugar. Along with setting weight loss goals and keeping track of your physical activity and diet, your Lark coach can offer insights such as instant feedback on your meal choices and motivational reminders to keep up the good work.


  1. Boden G1, Sargrad K, Homko C, Mozzoli M, Stein TP. Effect of a low-carbohydrate diet on appetite, blood glucose levels, and insulin resistance in obese patients with type 2 diabetes. Ann Intern Med. 2005 Mar 15;142(6):403-11.
  2. Franziska Spritzler. A Low-Carbohydrate, Whole-Foods Approach to Managing Diabetes and Prediabetes. Diabetes Spectrum Nov 2012, 25 (4) 238-243; DOI: 10.2337/diaspect.25.4.238
  3. Mobbs CV1, Mastaitis J, Isoda F, Poplawski M. Treatment of diabetes and diabetic complications with a ketogenic diet. J Child Neurol. 2013 Aug;28(8):1009-14. doi: 10.1177/0883073813487596. https://www.ncbi.nlm.nih.gov/pubmed/23680948

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