Peas carry one of the lowest measured footprints of any protein ingredient, about 0.44 kg of CO2-equivalent per 100g of protein, and pea is the largest ingredient by weight in NØRSE CØDE.[1] Tofu sits at 1.98 in the same dataset and rice at 6.27. Cheese, the closest dairy comparison, sits at 10.82.
Footprint is one criterion. It is worth knowing, and it is the subject of this page. It is also the criterion you will use least often, because you meet a protein powder twice a day and you meet its carbon number never. So this page covers both: what the published data says about each ingredient, and what that same ingredient line tells you about how the powder will actually treat you.
Four things, in the order they will matter to you:
Footprint lives inside that fourth item. Every section below gives you the number and the practical read.
Peas are legumes. They fix nitrogen from the air, which removes most of the need for synthetic fertilizer, and fertilizer is where a large share of a crop's footprint comes from.
The largest food life-cycle analysis to date measured the result. Kilograms of CO2-equivalent per 100g of protein:[1]
Pulses also use less land and less water per gram of protein than dairy or meat.
The practical read: pea protein is mild, it dissolves easily, and it carries flavor well. It is the workhorse of most good plant blends for reasons that have nothing to do with carbon.
Soy fixes nitrogen the same way peas do. The dataset above measures tofu, the whole-food form, at 1.98 kg CO2e per 100g of protein; soy protein isolate goes through further processing that the figure does not cover.[1] Soy's reputation problem is deforestation. That link traces almost entirely to soy grown as animal feed in a few specific regions, and food-grade soy for direct human consumption moves through a different supply chain. The useful question is which one you are holding: feed-grade or food-grade, and grown where.
The practical read: soy protein is complete and inexpensive. Some people find it sits heavily, which is the more common reason it gets left out of a blend.
Rice is the highest-footprint plant entry in the dataset above, at 6.27 kg CO2e per 100g of protein.[1] The reason is water management rather than the plant. Flooded paddies create anaerobic conditions where bacteria produce methane, and methane from rice cultivation is estimated at roughly 1.5% of global greenhouse gas emissions.[2] Rice grown with drier, intermittent irrigation produces far less. That distinction almost never reaches a label, which is the honest limit of what a bag can tell you here.
The practical read: rice protein brings a slightly grainy texture on its own and an amino acid profile that complements pea well. It earns its place in a blend as a partner, seldom as the whole protein.
Try It Yourself
Hemp is marketed as a low-water crop, and it handles a short dry spell well. A 2018 study measured it closing its stomata to conserve moisture during brief drought, and found that a sustained shortage still cuts leaf area and yield.[3] The low-water claim holds for a dry week. It weakens across a full dry season in an arid region.
The practical read: hemp brings fiber and a distinctly earthy flavor. It is a real ingredient with a small following, and it is difficult to hide in a shake.
Dairy carries the highest footprint here by a wide margin. Cheese, the closest dairy analog with usable per-protein data, runs about 10.82 kg CO2e per 100g of protein, driven by the methane cattle produce and the land and feed required to keep them.[1] Whey comes out of that same supply chain and arrives carrying most of it.
The practical read: whey mixes fast and tastes familiar. It is also the protein most often named when someone tells us their old powder stopped agreeing with them.
The protein source is roughly half of what an ingredient line tells you. The other half is what a brand added to make the powder behave.
Most powders thicken with xanthan gum or guar gum. Both work. Both are also common triggers for the bloating and gas people blame on protein itself.
NØRSE CØDE thickens with acacia fiber, which is a soluble fiber, a different ingredient from those gums. It gives the shake its body, and it is a prebiotic fiber, so one ingredient does the job two thickeners do elsewhere. That is a large part of why the label stays at 9 natural ingredients, and why the shake mixes with a spoon in a glass of water.
Acacia is sometimes printed as acacia gum on a panel. The name is shared. The ingredient is not.
NØRSE CØDE is a three-source blend: pea, rice and barley protein, inside a label of 9 natural ingredients. Pea is the largest of the three by weight, so the ingredient we use most of is also the low-footprint one on this page. Rice is a minority partner, included for the amino acid profile it adds to pea.
We make the blend ourselves in Petaluma, California. Owning the line means we control what goes in and how fast we can fix something when it needs fixing, without waiting in a contract manufacturer's queue. We third-party test every input for heavy metals. The powder ships in a stand-up bag, which uses less plastic than a rigid tub.
On taste, the verdict came from other people's mouths. In a blind taste test against Orgain and Optimum Nutrition Gold Standard, more people chose NØRSE CØDE than chose the other two combined.
On published data, pulses have the strongest case, dairy the weakest, and soy, rice and hemp fall between depending on how each was grown. Any of them can be grown well or badly.
Use the footprint numbers to narrow the field. Then decide the way you will actually live with it: whether it sits well, whether it mixes without a blender, whether you want to drink it tomorrow. For a wider look at how full brands compare on the same standard, see our guide to sustainable protein powder.
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