{"product_id":"nutra-bio-signature-protein","title":"NutraBio Signature Protein — 25g Milk, Casein and Egg Blend, Zero Sugar","description":"\u003ch2\u003eNutraBio Signature Protein\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e25 grams of protein from three fully disclosed sources\u003c\/strong\u003e: 8.7g milk protein isolate, 8.2g micellar casein and 8.1g egg white protein. 130 calories, 3g of carbohydrate, 2g of fat and zero sugar per scoop.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this protein actually is: a slow blend, not a whey\u003c\/h3\u003e\n\n\u003cp\u003eThe label lists three sources in near-equal amounts. One extra step of arithmetic tells you how the shake behaves once you drink it, and it is the most useful thing on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMilk protein isolate is milk protein filtered as a whole.\u003c\/strong\u003e It keeps milk's natural ratio of roughly 80% casein to 20% whey. Apply that to the 8.7g in this formula and the real picture looks like this:\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\n\u003cstrong\u003eCasein\u003c\/strong\u003e (micellar casein plus the casein in the milk isolate)\u003c\/td\u003e\n    \u003ctd\u003e~15g\u003c\/td\u003e\n    \u003ctd\u003e\u003cstrong\u003eAbout 60% of the protein. Slow.\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eEgg white\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e8.1g\u003c\/td\u003e\n    \u003ctd\u003eAbout 32%. Medium.\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\n\u003cstrong\u003eWhey\u003c\/strong\u003e (the whey fraction of the milk isolate)\u003c\/td\u003e\n    \u003ctd\u003e~1.7g\u003c\/td\u003e\n    \u003ctd\u003eAbout 7%. Fast.\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eSignature Protein is a sustained-release protein with a small fast fraction on top.\u003c\/strong\u003e That is a different tool from a whey isolate, and it is the reason to buy it or to skip it. The split above is our arithmetic from the typical composition of milk protein isolate, not a figure printed on the tub.\u003c\/p\u003e\n\n\u003ch3\u003eHow each source works\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicellar casein (8.2g).\u003c\/strong\u003e Casein clots when it meets stomach acid and forms a soft gel. That gel leaves the stomach slowly, so amino acids reach the bloodstream as a steady supply over several hours instead of a single spike. Micellar casein is the intact form, as opposed to cheaper caseinates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilk protein isolate (8.7g).\u003c\/strong\u003e Casein and whey together in the ratio milk makes them. The small whey portion arrives first, the casein portion follows.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEgg white protein (8.1g).\u003c\/strong\u003e Digests at a pace between whey and casein. It is naturally lactose free, sits at the top of the protein quality scale (a PDCAAS of 1.0) and brings a different amino acid balance from dairy, with more of the sulfur amino acids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAll three are complete proteins, so the blend supplies all nine essential amino acids.\u003c\/p\u003e\n\n\u003ch3\u003eThe honest read on leucine\u003c\/h3\u003e\n\n\u003cp\u003eLeucine is the amino acid that switches on muscle protein synthesis, and roughly 2 to 3 grams per meal is the commonly cited target. Whey is the richest source at around 11% leucine. Casein and egg white sit closer to 8 to 9%.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBy our estimate, one scoop of Signature Protein delivers about 2.2 to 2.4g of leucine\u003c\/strong\u003e, against roughly 2.7g from 25g of whey isolate. That is inside the target range, but it is lower than whey, and it arrives more gradually. The label does not print an amino acid profile, so treat this as an estimate from typical values for each source.\u003c\/p\u003e\n\n\u003cp\u003eFor most people this difference is small. Total daily protein drives results far more than the speed of any single shake.\u003c\/p\u003e\n\n\u003ch3\u003eThe enzyme complex, and what it does not do\u003c\/h3\u003e\n\n\u003cp\u003eEach scoop includes a 250mg digestive enzyme complex of protease and lactase.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLactase\u003c\/strong\u003e splits lactose into simple sugars your gut can absorb. Milk protein isolate and casein carry small amounts of residual lactose, so this is the more useful of the two if dairy shakes tend to leave you bloated.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtease\u003c\/strong\u003e begins breaking protein into smaller peptides. A healthy digestive system already does this well, so expect a modest benefit at most.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEnzymes do nothing for a milk or egg allergy.\u003c\/strong\u003e An allergy is an immune reaction to the proteins themselves, and this product is made of exactly those proteins.\u003c\/p\u003e\n\n\u003ch3\u003eWhy one scoop carries 30% of your daily calcium\u003c\/h3\u003e\n\n\u003cp\u003eCasein micelles are held together by calcium phosphate, so calcium travels with the protein instead of being added afterward. A casein-heavy blend is naturally calcium-rich, which is useful if your diet is light on dairy.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtein\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25g (8.7g milk protein isolate, 8.2g micellar casein, 8.1g egg white)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarbohydrate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSugar\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFat\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalcium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30% of daily value\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnzymes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250mg protease and lactase complex\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2lb (about 26 servings) and 5lb\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlavors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChocolate Milkshake, Creamy Vanilla, Cookies \u0026amp; Cream, Banana Creme\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLabel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully disclosed, no proprietary blends\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTesting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery lot third-party tested, results at checkmysupps.com\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKosher and halal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAllergens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMilk, egg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy the disclosed split matters on a blend.\u003c\/strong\u003e Most protein blends list their sources without amounts, which lets a formula lead with the expensive ingredient on the label and the cheap one in the tub. NutraBio prints the grams from each source and publishes lab results by lot number at \u003cstrong\u003echeckmysupps.com\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003eNutraBio Signature Protein\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e25g \/ 130 cal\u003c\/td\u003e\n    \u003ctd\u003e\u003cstrong\u003eSlow-release blend. Between meals, daytime, before bed\u003c\/strong\u003e\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003e\u003ca href=\"\/products\/nutra-bio-whey-isolate\"\u003eNutraBio 100% Whey Isolate\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e25g \/ 120 cal\u003c\/td\u003e\n    \u003ctd\u003eFast and leanest. Zero fat, most leucine per scoop\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003e\u003ca href=\"\/products\/nutra-bio-clear-whey-protein-isolate\"\u003eNutraBio Clear Whey Isolate\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e20g \/ 80 cal\u003c\/td\u003e\n    \u003ctd\u003eDrinks like fruit juice, not a shake\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e\u003cstrong\u003e\u003ca href=\"\/products\/nutra-bio-extreme-mass\"\u003eNutraBio Extreme Mass\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd\u003e53g \/ 660 cal\u003c\/td\u003e\n    \u003ctd\u003eFor adding calories, not replacing a protein shake\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eSignature Protein is the pick when the shake has to hold you for hours.\u003c\/strong\u003e Whey isolate is the pick when the goal is the most protein and leucine for the fewest calories.\u003c\/p\u003e\n\n\u003ch3\u003eHow to use it\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne scoop in 6 to 8oz of cold water.\u003c\/strong\u003e Casein thickens as it sits, so add liquid if you want it thinner.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetween meals.\u003c\/strong\u003e This is where a slow blend earns its place. It digests over hours and tends to be more filling than whey.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBefore bed.\u003c\/strong\u003e The pre-sleep protein studies used around 40g of casein. One scoop supplies about 15g of casein inside 25g of total protein, so count it as a solid contribution, not a copy of the research dose.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAfter training.\u003c\/strong\u003e It works. A fast whey has a slight edge on leucine and speed, but hitting your daily protein total matters more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIn food.\u003c\/strong\u003e Casein blends thicken well, so this stirs into oats or Greek yogurt and makes a decent protein pudding with less liquid.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAnyone who wants one protein for all day instead of only the post-workout window\u003c\/li\u003e\n  \u003cli\u003ePeople who find whey leaves them hungry again within the hour\u003c\/li\u003e\n  \u003cli\u003eAnyone looking for a before-bed protein without buying a separate casein\u003c\/li\u003e\n  \u003cli\u003eAdults focused on holding on to muscle with age, where steady daily protein matters most\u003c\/li\u003e\n  \u003cli\u003ePeople who want part of their protein from a non-dairy source, with egg white as about a third of the blend\u003c\/li\u003e\n  \u003cli\u003eAnyone who wants to see the grams from every source and check the lab results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is not for\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIf you have a milk or egg allergy, this is not suitable.\u003c\/strong\u003e Our \u003ca href=\"\/products\/rule-1-plant-protein\"\u003eplant proteins\u003c\/a\u003e are the alternative.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIf you want the fastest, leanest post-workout shake\u003c\/strong\u003e, \u003ca href=\"\/products\/nutra-bio-whey-isolate\"\u003eNutraBio 100% Whey Isolate\u003c\/a\u003e has more leucine, zero fat and fewer calories.\u003c\/p\u003e\n\n\u003cp\u003eIf you are strongly lactose intolerant, the added lactase helps, but a casein-heavy blend carries more lactose than a whey isolate. Start with a half scoop.\u003c\/p\u003e\n\n\u003cp\u003eIf you are vegan, every source here is animal-derived.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStack it with:\u003c\/strong\u003e \u003ca href=\"\/products\/nutra-bio-creatine\"\u003ecreatine\u003c\/a\u003e, which mixes into a shake without changing the taste.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow much protein is in NutraBio Signature Protein?\u003c\/strong\u003e\u003cbr\u003e\n25g per scoop at 130 calories: 8.7g from milk protein isolate, 8.2g from micellar casein and 8.1g from egg white, with zero sugar.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs Signature Protein a whey protein?\u003c\/strong\u003e\u003cbr\u003e\nNo. It contains a small amount of whey as part of the milk protein isolate, but around 60% of the protein is casein and about a third is egg white. It digests far more slowly than a whey.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between Signature Protein and whey isolate?\u003c\/strong\u003e\u003cbr\u003e\nSpeed and leanness. Whey isolate digests quickly, has more leucine and no fat. Signature Protein releases amino acids over several hours and is more filling. Whey suits the post-workout window, Signature suits the rest of the day.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I take it before bed?\u003c\/strong\u003e\u003cbr\u003e\nYes. The casein content makes it a good fit, since it digests slowly overnight. One scoop gives about 15g of casein, which is below the 40g used in most pre-sleep studies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use it after a workout?\u003c\/strong\u003e\u003cbr\u003e\nYes. Whey is slightly better suited to that window, but total daily protein matters far more than timing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs it easy on the stomach?\u003c\/strong\u003e\u003cbr\u003e\nIt includes 250mg of protease and lactase, and the lactase helps with the small amount of lactose present. It will not help with a milk or egg allergy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is milk protein isolate?\u003c\/strong\u003e\u003cbr\u003e\nMilk protein filtered to remove most of the fat and lactose while keeping casein and whey in their natural ratio of about 80 to 20.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs it third-party tested?\u003c\/strong\u003e\u003cbr\u003e\nYes. Every lot is independently lab tested, and you can look up the results for your tub by lot number at checkmysupps.com.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhere can I buy NutraBio Signature Protein near Philadelphia?\u003c\/strong\u003e\u003cbr\u003e\nAt Coalition Nutrition, 2026 E Old Lincoln Hwy in Langhorne, PA, or online here. Come in and we will tell you plainly whether this or a whey fits what you are doing.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How much protein is in NutraBio Signature Protein?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"25g per scoop at 130 calories: 8.7g from milk protein isolate, 8.2g from micellar casein and 8.1g from egg white, with zero sugar.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is Signature Protein a whey protein?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. It contains a small amount of whey as part of the milk protein isolate, but around 60% of the protein is casein and about a third is egg white. It digests far more slowly than a whey.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between Signature Protein and whey isolate?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Speed and leanness. Whey isolate digests quickly, has more leucine and no fat. Signature Protein releases amino acids over several hours and is more filling. Whey suits the post-workout window, Signature suits the rest of the day.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I take it before bed?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The casein content makes it a good fit, since it digests slowly overnight. One scoop gives about 15g of casein, which is below the 40g used in most pre-sleep studies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use it after a workout?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Whey is slightly better suited to that window, but total daily protein matters far more than timing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is it easy on the stomach?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"It includes 250mg of protease and lactase, and the lactase helps with the small amount of lactose present. It will not help with a milk or egg allergy.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is milk protein isolate?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Milk protein filtered to remove most of the fat and lactose while keeping casein and whey in their natural ratio of about 80 to 20.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is it third-party tested?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Every lot is independently lab tested, and you can look up the results for your tub by lot number at checkmysupps.com.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Where can I buy NutraBio Signature Protein near Philadelphia?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"At Coalition Nutrition, 2026 E Old Lincoln Hwy in Langhorne, PA, or online. Come in and we will tell you plainly whether this or a whey fits what you are doing.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"NutraBio","offers":[{"title":"2lb \/ Creamy Vanilla","offer_id":68111325429839,"sku":null,"price":49.99,"currency_code":"USD","in_stock":false},{"title":"2lb \/ Chocolate Milkshake","offer_id":68111325462607,"sku":null,"price":49.99,"currency_code":"USD","in_stock":false},{"title":"5lb \/ Creamy Vanilla","offer_id":68111325495375,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true},{"title":"5lb \/ Chocolate Milkshake","offer_id":68111325528143,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/8986\/files\/2026-11-11T101451.572.png?v=1794417360","url":"https:\/\/www.coalitionnutrition.com\/products\/nutra-bio-signature-protein","provider":"Coalition Nutrition","version":"1.0","type":"link"}