Pistachio Milk Protein: How Much Is in a Cup?

Pistachio milk has about 2 to 4 grams of protein per cup, modest and lower than many people expect from a nut milk. The whole nut is fairly protein-rich, but the milk is mostly water, so most of that protein doesn't make it into the glass. Here's the honest breakdown, by brand and against other milks.

Protein by brand (per cup)

Pistachio milk (per cup / 240 ml)	Protein
Táche, unsweetened	~2 g
Elmhurst, unsweetened	~3 g
Three Trees (pistachio + almond)	~4 g
Protein-boosted blends (with soy)	up to ~6 g
Homemade, unsweetened	~2 g

From brand labels; verify against current packaging. Higher figures come from more nut content or from blending in almond or soybeans.

Why the milk has less protein than the nut

This is the key point. Whole pistachios carry about 6 g of protein per ounce (USDA). But a cup of pistachio milk contains only a fraction of an ounce of nuts. Elmhurst, one of the nuttier brands, lists around 27 pistachios per glass, diluted in mostly water. Homemade versions also strain out the solids, removing some protein with the pulp. So the milk ends up light: pleasant and creamy, but not a protein source the way the nuts are. The same dilution is why it's low in calories.

How it compares to other milks

Per 1 cup (240 ml), unsweetened	Protein
Cow's milk	~8 g
Soy milk	~7-9 g
Pea milk	~8 g
Pistachio milk	~2-4 g
Oat milk	~2-4 g
Almond / cashew / coconut	~0-1 g

Approximate, unsweetened; brands vary. Soy and pea figures per USDA / brand labels.

Pistachio milk sits in the middle-to-low band, more than almond, cashew or coconut, but far below soy, pea and dairy. If high protein is your aim, soy is the plant milk closest to cow's milk, as UF/IFAS Extension notes; see pistachio milk vs soy and vs cow's milk.

If you need more protein

Pistachio milk works best as a flavorful, light milk rather than a protein drink. To boost it:

Blend a smoothie with protein powder, Greek or soy yogurt, or banana and pistachio butter, easily adding 15-25 g.
Pair it with a protein-rich meal rather than relying on the milk itself.
Choose a protein-boosted blend (some brands add soybeans) if you want more from the carton.

The honest takeaway

Pistachio milk is a low-to-moderate protein milk. Its strengths are flavor, a creamy body, unsaturated fat and low sugar, not protein. Treat the 2-4 g per cup as a small bonus, and get your protein elsewhere if that's a priority. The wider nutrition picture is in pistachio milk benefits and is pistachio milk good for you. For the protein line read alongside everything else each brand declares, see our compiled pistachio milk nutrition facts per cup, which records 4 g for both Three Trees Organic Unsweetened and Elmhurst Barista Edition and 3 g for Elmhurst Unsweetened, each dated and sourced.

Allergy note

Pistachios are a tree nut. Pistachio milk is unsuitable for anyone with a nut allergy. This is general nutrition information, not personalized dietary advice; check current product labels for exact figures.

Frequently asked questions

How much protein is in pistachio milk?

About 2-4 g per cup (240 ml), depending on the brand. Táche unsweetened has around 2 g, Elmhurst around 3 g, and blends with almond or soy a little more. That's modest, lower than soy milk (7-9 g) or cow's milk (about 8 g), and similar to almond milk. Pistachio milk is mostly water, so it carries only a fraction of the protein found in the whole nut.

Why is pistachio milk lower in protein than pistachios?

Because a glass of milk contains only a small amount of nuts. Whole pistachios have about 6 g of protein per ounce, but a cup of pistachio milk is mostly water with the equivalent of a fraction of an ounce of nuts, one brand lists about 27 pistachios per glass. Straining out the solids in homemade versions removes some protein too. The result is a light milk with modest protein.

Which plant milk has the most protein?

Soy milk, by a clear margin, about 7-9 g per cup, close to cow's milk, and it's a complete protein. Pea milk is also high. Pistachio, almond, cashew, coconut and most nut milks are low in protein (roughly 1-4 g). If you want a high-protein plant milk, soy or pea is the better choice; pistachio competes on flavor and fats instead.

How can I add protein to pistachio milk?

Blend it into a smoothie with a scoop of protein powder, Greek or soy yogurt, or a banana and nut butter, which can add 15-25 g of protein. You can also choose a protein-boosted pistachio milk (some blend in soybeans) or simply use pistachio milk for flavor alongside another protein source in your meal. On its own, treat it as a light milk, not a protein drink.

Allergy note: Pistachios are a tree nut. If you have a nut allergy, avoid pistachio milk and pistachio products, and check labels for cross-contamination warnings. This article is general information, not personalized dietary or medical advice.