Are Pistachios Keto?
Pistachios are not keto-friendly because they are high in carbs. They may kick you out of ketosis even with a small serving size.
Too Much Carbs!
Pistachios should be avoided on keto because they are very high in net carbs (16.57g 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 nuts that are low in net carbs.
Not an Ideal Source of Fat for Keto
Pistachios are not an ideal source of fat for keto because they are high in carbs.
Your body will only be able to use fats as energy (ketosis) if you restrict your net carbs to 20g - 30g per day. Thus, it is important to get your fats from high-fat foods that are also low in net carbs.