Not Keto!
Cornstarch

Cornstarch

per 100 g:
90.4g
net carbs
0.1g
fats
0.3g
protein
381
calories

Is Cornstarch Keto?

Cornstarch is not keto-friendly because it is high in carbs. It may kick you out of ketosis even with a small serving size.

Too Much Carbs!

Cornstarch should be avoided on keto because it is very high in net carbs (90.37g of net carbs per 100g serving).

It is important to limit your net carb consumption to 20g - 30g per day to stay in ketosis. You can calculate your ideal daily net carb allowance by using this keto macros calculator.

As an alternative, you may look for other flour that are low in net carbs.

Low in Fats

Cornstarch is both high in carbs and low in fats, which are the exact opposite of the macros required on a keto diet.

The ideal macronutrient ratio for keto is 70% fat, 20-25% protein, and 5-10% carbs. This means the majority of your foods should be both low in carbs and high in fats.

Avocado, salmon, and ghee are great examples of foods that are both low in carbs and high in fat.

Minimally Processed But High in Carbs

Cornstarch is minimally processed but not a good fit for keto because it is high in carbs.

It is important to check both macros and ingredients of your foods to achieve a healthy weight loss on keto.

Here are the common ingredients to be checked for keto - sweeteners, oils, and food additives.

Net Carb Calculator

Cornstarch
90.37 g
net carbs
91.27 g
carbs
0.9 g
fiber / sugar alcohol
0.05 g
fats
0.26 g
protein
381
calories

Alternative Flour for Keto

Keto-Friendly

Generic

Konjac Flour

0
Net Carbs per 100g
Low Carb
Minimally Processed
Keto-Friendly

Generic

Lupin Flour

3.3
Net Carbs per 100g
Low Carb
Minimally Processed
Keto in Moderation
7.3
Net Carbs per 100g
High Carb
Minimally Processed
Healthy Fats, Whole Food
Keto in Moderation

Generic

Almond Flour

8.8
Net Carbs per 100g
High Carb
Minimally Processed
Healthy Fats, Whole Food