Pistachios
A fiber- and fat-containing nut that is easier to portion when measured rather than eaten from a large container.
Why it received this rating
Pistachios provide fat, fiber, and some protein in a nutrient-dense package. A measured one-ounce portion is generally well tolerated; the shell-cracking process naturally slows eating, which can help with portion control.
Nutrition snapshot
Per serving: 1 oz shelled (28g, about 49 kernels)
Unsalted values shown; salted versions commonly add over 100mg sodium per ounce.
Approximate nutrition per common serving, based on USDA FoodData Central; values vary by brand, preparation, and portion size. Reviewed July 2026. How nutrition data is handled
Portion and preparation guidance
One ounce, about 49 kernels, is the standard serving. Shelled pistachios are easy to overeat quickly since there is no shell to slow you down, so measuring into a small bowl rather than eating from the container helps keep the portion predictable.
Symptoms or considerations
Pistachios combine fat and fiber, about 13g of fat and 3g of fiber per ounce, which can contribute to fullness or mild digestive discomfort in a larger portion. Salted versions add sodium beyond the unsalted baseline. In-shell pistachios take longer to eat because of the cracking process, which some people find naturally limits how much they eat in one sitting compared to pre-shelled kernels.
Common questions
Are pistachios a good snack on a GLP-1?
In a measured one-ounce portion, generally yes: they provide fat, fiber, and 6g of protein, which can be satisfying in a small serving. The combination of fat and fiber means a much larger portion may cause fullness or mild digestive discomfort for some people.
Does eating pistachios in-shell help with portion control?
For many people, yes. Cracking each shell slows down eating speed and gives a visual cue of how many you have eaten, which some research has linked to eating fewer calories compared to pre-shelled kernels eaten straight from a bag.
Individual tolerance varies. This rating is general educational guidance, not a statement that this food is the right choice for your personal medical needs. Follow advice from your prescriber or registered dietitian.
Related foods
Helpful guides
Free grocery checklist
Building your GLP-1 grocery list? Get the free starter checklist.