A single chicken yolk packs around 186 mg of cholesterol along with complete protein and natural choline, while the plant-based alternative keeps the protein but skips both the cholesterol and any animal-derived nutrients. Just Egg delivers 0 mg of cholesterol and a plant-based protein source, yet it carries more sodium, refined oils, and industrial gums.
This guide compares the two across nutrition, cooking behavior, taste, and cost so you can match the right option to your kitchen, your diet, and your weeknight scramble.
The Plant-Based Egg Substitute Reshaping the Breakfast Aisle
Just Egg launched commercially in 2018 after years of development by Eat Just, a San Francisco food technology company. Today the product ships in liquid bottles, folded patties, and frozen formats across major U.S. grocery chains including Whole Foods, Target, and Kroger. Its arrival marked the first time a shelf-stable, plant-based liquid cracked the egg case at scale.
Chickens in the U.S. lay about 90 billion eggs per year, a market valued in the tens of billions of dollars. Just Egg targets four core functions a real egg performs: scramble, bind, leaven, and emulsify. The challenge was engineering one plant liquid to mimic a food that evolved over millions of years to feed a developing chick.
The mung bean became the structural answer. Its protein isolate forms soft curds when heated, which is the exact behavior a home cook wants when pouring liquid into a hot pan. The result is a product that sits in the same refrigerator slot as a dozen eggs but delivers very different nutritional and sensory results.
| Product | Format | First U.S. Launch | Primary Protein Source |
|---|---|---|---|
| Just Egg (liquid) | 443 ml bottle | 2018 | Mung bean protein isolate |
| Just Egg folded | Pre-formed patty | 2019 | Mung bean protein isolate |
| Just Egg frozen | 12 oz bag | 2021 | Mung bean protein isolate |
| Chicken egg | Shell, large | Centuries old | Ovalbumin and conalbumin (egg white proteins) |
What Just Egg Is Actually Made Of
Reading the Just Egg label reveals a long ingredient list that would look strange next to a carton of eggs. Each component plays a specific structural or sensory role, and understanding them helps you decide whether the trade-off fits your diet.
The Protein Backbone and Fat Carriers
Mung bean protein isolate provides the primary structure. When heated, the proteins unfold and bond, forming curds that mimic the soft set of scrambled eggs. Canola oil and sunflower lecithin carry fat content that mimics yolk richness, while keeping the product shelf-stable without refrigeration until opened.
Transglutaminase, an enzyme often derived from fermented plant cultures, helps proteins cross-link so the liquid holds together in a skillet instead of spreading like water. Gellan gum, cellulose gum, and carrageenan stabilize the liquid, prevent separation during shipping, and improve mouthfeel when cooked.
Allergens, Sodium, and Color
Soy and lupin appear in trace amounts, which is why allergen labeling is critical for anyone sensitive to legumes. Sodium levels run noticeably higher than a whole chicken egg, a trade-off that comes from flavor restoration rather than structural necessity. Yellow color comes from beta-carotene and turmeric extract rather than natural yolk pigments.
That ingredient list determines everything that follows on the nutrition label, where the two products diverge in ways that matter at the breakfast table.
Allergen note: lupin (also called lupini) is a legume related to peanut. Cross-reactivity is documented in people with peanut allergies, and the FDA requires clear labeling on lupin-containing products.
| Ingredient | Function in Just Egg | Present in Real Egg? |
|---|---|---|
| Mung bean protein isolate | Structure, curd formation | No |
| Canola oil | Mouthfeel, fat content | Only in yolk, naturally |
| Sunflower lecithin | Emulsification | Yes, in yolk |
| Transglutaminase | Protein cross-linking | No |
| Gellan gum, cellulose gum, carrageenan | Stabilization, texture | No |
| Beta-carotene, turmeric | Yellow color | No (yolk is naturally pigmented) |
Nutrition Face-Off: Protein, Fat, Cholesterol, and Sodium
Side-by-side, a serving of Just Egg and one large chicken egg land within roughly 10 percent of each other on calories, but diverge sharply on cholesterol, sodium, and micronutrients. The numbers below use a 50 ml Just Egg serving and a 50 g large egg as the comparison baseline.
| Nutrient (per serving) | Just Egg (50 ml) | Chicken Egg (1 large, 50 g) |
|---|---|---|
| Calories | 70 | 72 |
| Protein | 5–7 g | 6 g |
| Total fat | 5 g | 5 g |
| Saturated fat | 0.5 g | 1.6 g |
| Cholesterol | 0 mg | 186 mg |
| Sodium | 200–240 mg | 70 mg |
| Choline | Added in some versions | 147 mg (naturally occurring) |
| Vitamin B12 | Added in fortified versions | 0.6 mcg (naturally occurring) |
| Vitamin D | Added in fortified versions | 44 IU (naturally occurring) |
What the Numbers Mean for You
One large chicken egg delivers about 6 grams of complete protein with all nine essential amino acids in balanced ratios. A 50 ml serving of Just Egg provides roughly 5 to 7 grams of plant-based protein, but the amino acid profile differs, since mung bean protein is lower in methionine than egg protein.
A whole egg contains around 186 mg of dietary cholesterol, while Just Egg contains 0 mg, a difference that matters for people managing heart disease risk. Just Egg carries more sodium and more processed oils, which offsets some of the cholesterol advantage depending on your specific health priorities.
Vitamin B12, vitamin D, and choline are naturally abundant in chicken eggs but absent or added artificially in plant-based versions. Chicken eggs also provide naturally occurring lutein and zeaxanthin, two carotenoids linked to eye health, and Just Egg does not replicate these without fortification. Calorie counts land close enough that neither option is a weight-loss shortcut on its own.
Processing, Allergens, and the Highly-Processed Question
Just Egg qualifies as an ultra-processed food by the NOVA classification system, a four-tier framework developed by researchers at the University of São Paulo to categorize foods by the extent and purpose of industrial processing. The product isolates a single plant protein, reconstitutes it with oils and gums, and builds a functional food designed to imitate another food entirely.
The degree of processing differs from cookies or chips. Just Egg is a constructed food, engineered to perform specific culinary functions, not a snack designed for reward-driven eating. Still, the ingredient list runs longer than a real egg, and that fact matters to anyone tracking ultra-processed food intake.
What Real Eggs Require by Comparison
Chicken eggs are among the least processed foods available, requiring only washing, grading, and refrigeration between hen and carton. The factory, in this case, is a bird.
Lupin and soy allergens pose a real risk, and cross-contamination in manufacturing is documented on some label disclosures. Long-term daily use of either option carries different concerns. Eggs bring cholesterol accumulation; Just Egg brings cumulative sodium and refined oil exposure.
Heads up: the FDA recognizes lupin as a major allergen, and people with peanut allergies should consult a qualified healthcare professional before trying products containing lupin protein.
Neither option is inherently dangerous, and the processing question is less about safety and more about how each fits into an overall dietary pattern. A daily scramble of either product is fine for most adults; a daily scramble of ultra-processed foods layered with sodium, refined oils, and added sugars across the rest of the day is a different problem.
Cooking Performance Across Scramble, Bake, Bind, and Fry
Just Egg scrambles, binds, and fries, but it does not match real eggs in every role. The cooking-context matrix below maps where the plant-based option succeeds, where it falls short, and where you should keep a carton of real eggs on hand.
| Cooking Task | Just Egg Performance | Real Egg Performance |
|---|---|---|
| Scramble | Soft, slightly wet curds; needs high heat to brown | Firm curds, Maillard browning, deeper flavor |
| Bake (muffin, quick bread) | Adequate binding; limited leavening | Full binding and leavening |
| Bind (meatballs, veggie burgers) | Comparable to beaten egg | Comparable to beaten egg |
| Fry (patty, French toast) | Passable patty; weak crisping | Crispy edges, structural integrity |
| Quiche, custard | Sets but lacks richness | Sets and firms properly |
Substitution Math You Can Rely On
Most recipes call for the same liquid-to-egg swap, so the ratio rarely needs adjustment. 3 tablespoons (about 50 ml) of Just Egg replaces one large chicken egg for scrambles and binds. Baked goods may need a half-teaspoon of baking powder added for leavening, since Just Egg does not trap air the way a whipped whole egg does.
A useful example: a 12-muffin batch calling for 3 eggs can be made with 9 tablespoons of Just Egg plus 1.5 teaspoons of baking powder. Expect a slightly denser crumb and less rise. In savory applications like veggie burgers or latkes, the swap is straightforward and rarely requires adjustment.
Taste, Texture, and Color Side by Side
Just Egg tastes mild and slightly vegetal, often described as bean-like or nutty rather than sulfurous like a real egg. The sulfur notes in chicken eggs come from compounds in the yolk, particularly when overcooked, and plant proteins do not produce them.
Real eggs develop a savory, umami-rich edge during cooking thanks to glutamates (naturally occurring amino acids that enhance savory flavor) and Maillard reactions, the browning that happens when proteins and sugars meet high heat. Plant proteins cannot fully replicate this chemistry. Texture in a scramble is softer and more uniform with Just Egg, while chicken eggs offer distinct curds with a tender interior and lightly crisped exterior.
Color, Seasoning, and the Flavor Gap
Color from beta-carotene gives Just Egg a yellow hue, but the shade is brighter and more uniform than the pale-gold of a real yolk. Seasoning matters more with Just Egg. Salt, black pepper, nutritional yeast, and a pinch of turmeric are common additions used to close the flavor gap.
Try this: cook Just Egg on medium-high heat with a small splash of oil and avoid stirring for the first 90 seconds. Letting the curds set undisturbed produces a more egg-like texture than constant stirring.
Blind taste tests in independent reviews consistently show that trained tasters can distinguish Just Egg from real eggs, though untrained eaters sometimes cannot. If you grew up eating real eggs, the difference registers immediately. If you are new to both, the gap closes considerably with proper seasoning and high-heat cooking.
Price, Environmental Cost, and Long-Term Value
A dozen large chicken eggs in the U.S. runs roughly $2 to $4, while a 443 ml bottle of Just Egg averages $4 to $7. That works out to about $0.25 per real egg and $0.50 to $0.80 per Just Egg serving, making per-serving cost two to three times higher for the plant-based option.
| Cost Metric | Real Egg (1 large) | Just Egg (50 ml serving) |
|---|---|---|
| Approximate U.S. price per serving | $0.17–$0.33 | $0.45–$0.80 |
| Price per gram of protein | $0.03–$0.06 | $0.07–$0.13 |
| Servings per typical package | 12 per dozen | 8–9 per 443 ml bottle |
| Shelf life (refrigerated, opened) | 3–5 weeks | 7–10 days |
The Environmental Trade-Off
Plant-based egg substitutes generate approximately 93 percent less greenhouse gas emissions than conventional eggs, with measurable savings in land use and water consumption. A life-cycle assessment published by a peer-reviewed LCA journal found that producing one kilogram of mung bean protein generates about 2.4 kg of CO₂ equivalent, compared to roughly 35 kg of CO₂ equivalent for the same protein yield from a dozen eggs.
Environmental benefits are real but must be weighed against the energy and water used to process mung beans into protein isolate, an input that LCA studies account for in varying ways. Ethical considerations around animal welfare favor Just Egg for anyone avoiding animal products for principled reasons, including vegan, vegetarian, and flexitarian eaters.
Storage tip: Just Egg liquid lasts roughly 7 to 10 days opened in the refrigerator and several weeks unopened. Real eggs keep for three to five weeks refrigerated. Plan your shopping accordingly.
The value equation depends on what you optimize for: nutrition density, environmental footprint, animal welfare, or budget. No single answer covers every cook, and the honest answer is that both products serve different priorities in different kitchens.
Which Option Wins for Specific Diets and Daily Use
Matching the right egg to the right diet is the most practical way to settle the comparison. Below is a diet-by-diet breakdown that accounts for nutrition, processing, and the specific concerns of each eating pattern.
Diet-Specific Recommendations
- Vegan and plant-based: Just Egg is the clear choice since real eggs are off the table entirely.
- Low-cholesterol and heart-conscious: Just Egg removes dietary cholesterol but adds processed sodium and oils, so the better option depends on your specific cardiac profile and your doctor’s guidance.
- Keto and high-protein: Whole eggs offer complete protein, natural fats, and zero additives, making them the stronger fit for low-carb eating.
- Diabetic eaters: Both can work, but whole eggs have a lower glycemic footprint and a longer-studied safety record for blood sugar management.
- Baking and recipe substitution: Real eggs remain the reliable default; Just Egg works as a backup with adjusted expectations and minor recipe tweaks.
Daily Use and Rotation Strategy
Daily use is reasonable for both, but rotating between the two reduces exposure to the downsides of either, whether that is cholesterol load or processed sodium. A reasonable pattern: real eggs three to four days a week, Just Egg one to two days a week, and other protein sources (Greek yogurt, cottage cheese, tofu scrambles) on remaining days.
Consult a qualified healthcare professional before making Just Egg a daily staple, especially if you take blood pressure medication, follow a renal diet, or have a known legume allergy.
The clearest decision rule: choose based on the specific meal, the specific diet, and the specific trade-off that matters most to you, not on a universal winner. Scrambles for a vegan brunch guest call for Just Egg. A pre-workout protein boost calls for real eggs. A lower-cholesterol breakfast three times a week calls for either, depending on your broader health picture.
Bottom Line
Real eggs win on protein quality, micronutrient density, price, and cooking versatility. Just Egg wins on cholesterol content, animal welfare, and environmental footprint. The smartest kitchen keeps both on hand and uses each where it performs best.
FAQ
Is Just Egg healthier than real eggs?
Not in every category. Just Egg contains zero cholesterol and less saturated fat, but it also contains more sodium, processed oils, and a longer ingredient list. Real eggs deliver more complete protein, natural choline, and naturally occurring vitamins. The healthier choice depends on which nutrient matters most for your specific health profile.
How much Just Egg equals one egg?
A 3-tablespoon pour, roughly 50 ml, steps in for one large chicken egg in scrambles, binding mixtures, and most savory dishes. Baked goods may need an extra half-teaspoon of baking powder per egg replaced, since Just Egg does not leaven the way a whipped real egg does.
Is it okay to eat Just Egg every day?
For most adults, daily Just Egg consumption is safe, but cumulative sodium and refined oil intake adds up over time. Rotating with real eggs, tofu scrambles, and other protein sources gives you more nutritional variety and limits exposure to any single processed ingredient list. Consult a qualified healthcare professional if you have blood pressure or kidney concerns.
Does Just Egg taste like real eggs?
Just Egg tastes similar to a mild, slightly vegetal scrambled egg, but trained tasters consistently distinguish it from real eggs. Untrained eaters often cannot tell the difference, especially with added salt, pepper, and high-heat cooking. The texture is softer and the flavor less sulfurous than a real egg.
Is Just Egg highly processed?
By the NOVA classification system, the product lands in the ultra-processed category thanks to its multi-step industrial extraction and a list of additives longer than most pantry staples. That does not make it unsafe, but it does mean the ingredient list runs longer than a real egg, and the sodium content is higher. The processing question is one of dietary pattern, not personal danger.
How does Just Egg compare nutritionally to chicken eggs?
Calories are nearly identical per serving. Just Egg has 0 mg cholesterol versus 186 mg in a real egg, but it has roughly three times the sodium. Real eggs deliver more complete protein, natural choline, and naturally occurring lutein, while Just Egg relies on fortification for vitamin B12, vitamin D, and choline.
