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2 lb jar · Made in the USA · Since 1997
PROENERGYGrass-Fed Whey Protein Isolate
★★★★★ 4.9 out of 5 · 9,529 verified customer reviews on Shopper Approved
20 grams of grass-fed whey isolate in a 90-calorie scoop. No concentrate, no sugar, nothing artificial: the shake this company was built on, and the one people have been reordering for twenty-nine years.
2 lb jar · 20 g protein · 80–90 calories · 0 g sugar · 0 g fat · grass-fed · rBGH-free · gluten-free · non-GMO
$75.99$61.95per 2 lb jar
Order 4 or more jars and each is $54.99
Pick a flavor below to add it to your cart.
✓ Ships same day if you order by 2pm PT✓ Free shipping over $50✓ 30-day money-back guarantee, even if opened✓ Made in the USA✓ Secure checkout
Choose your flavor
Three jars. Never more than six ingredients in any of them.
Same isolate, same grass-fed source, same price. Vanilla and chocolate are sweetened with stevia leaf; unflavored is nothing but the whey.
Most popular
Ultimate Vanilla
20 g protein · 90 cal · 35 servings
25 g scoop · $1.77 a shake
Ingredients: cold-processed grass-fed rBGH-free whey protein isolate, natural flavors, xanthan gum, sunflower lecithin, stevia leaf extract. Contains milk.
Chocolate Decadence
20 g protein · 90 cal · 35 servings
25 g scoop · $1.77 a shake
Ingredients: cold-processed grass-fed rBGH-free whey protein isolate, natural flavors, cocoa powder, xanthan gum, sunflower lecithin, stevia leaf extract. Contains milk.
Natural Unflavored
20 g protein · 80 cal · 40 servings
23 g scoop · unsweetened · $1.55 a shake
Ingredients: cold-processed grass-fed rBGH-free whey protein isolate. Contains milk. That is the whole list.
Mix and match: any 4 jars in the cart, in any combination of flavors, and each one drops to $54.99. Each flavor also has its own page: vanilla, chocolate, unflavored.
20 gOf protein in a 25-gram scoop. Four-fifths of what you put in the shaker is protein; the rest is flavor and the lecithin that makes it mix.
90Calories. 0 g fat, 0 g sugar, 0 mg cholesterol. A typical concentrate shake runs 130–150.
0Artificial anything. No sucralose, no acesulfame-K, no colors, no soy. Sweetened with stevia leaf.
35Shakes per jar. $1.77 each, or $1.57 at the four-jar price.
Why it works
Three words on the label that most protein powders cannot print.
Protein powder is a commodity until you read the fine print. Where the whey came from, how it was filtered, and what was added to make it taste like something: those three decisions are the whole difference between a shake that works and a tub that sits in the cupboard.
ISOLATE
Isolate, not concentrate
Whey concentrate is 70–80% protein with the lactose and fat left in. Isolate is filtered further: over 90% protein, with the lactose and fat removed. It is why a ProEnergy scoop is 90 calories and 0 g fat, and why people who cannot drink concentrate shakes drink this one.
GRASS-FED
From cows on pasture, not in a feedlot
The milk comes from grass-fed cows not treated with rBGH growth hormone or antibiotics. That is the source you would choose if you were buying the milk yourself, and it is printed on the jar, not implied by a picture of a field.
COLD-PROCESSED
Cross-flow microfiltered, never heat-denatured
Many whey powders are separated with acid and heat, which unfolds the protein. ProEnergy is separated by cross-flow microfiltration at low temperature, which keeps more of the native protein structure, including the immunoglobulins and lactoferrin, intact.
VERIFIED
Made in an NSF-certified facility, and independently tested
ProEnergy is made in a facility certified to NSF/ANSI 455-2, the third-party good-manufacturing-practice standard for dietary supplements, audited against 21 CFR Part 111. That is an outside auditor checking how the powder is blended, packed and documented, not us marking our own work. Every formula is also tested by an independent laboratory.
What that is not is a product-level sport certification such as Informed Sport or NSF Certified for Sport, which test finished batches for banned substances. We do not carry one. If you are drug tested in competition that distinction matters, and we would rather tell you here than have you find out later.
See how ProEnergy compares with eight other brands →
Turn the jar over
Five ingredients in vanilla. Six in chocolate. One in unflavored.
You should be able to read a protein label without a chemistry degree. Here is every ingredient in Ultimate Vanilla, and why it is there.
Cold-processed grass-fed rBGH-free whey protein isolate 20 g The protein. Filtered cold so it stays undenatured; over 90% protein by weight, with the fat, cholesterol and lactose removed.
Real vanilla character, nothing artificial. Chocolate Decadence adds cocoa powder for a true dark-chocolate taste.
A plant-derived thickener that gives the shake body, so it does not drink like flavored water.
Helps the powder mix cleanly with a spoon or shaker. Sunflower, not soy, so the jar stays soy-free.
The only sweetener. Zero sugar, zero sugar alcohols, zero artificial sweeteners.
Natural Unflavored is just the first line: whey protein isolate. Nothing else. The full supplement facts for all three flavors are at the bottom of this page.
Read two labels side by side
What the big tub is hiding. What ProEnergy prints.
Turn over the 5-pound tub at the warehouse store and read the ingredient panel out loud. Then read ours. That is the sales pitch.
The typical tub
- “Whey protein blend”: concentrate, with maybe some isolate, so the protein percentage is anyone’s guess
- Conventional dairy; no word on hormones or antibiotics because there is nothing good to say
- Sucralose and acesulfame potassium, plus artificial flavors and a color to match the picture
- Soy lecithin, maltodextrin, thickeners, and sometimes a “proprietary amino blend” that inflates the protein number
- 130–150 calories a scoop, with fat and lactose along for the ride
- Twelve to twenty ingredients
ProEnergy
- 100% whey protein isolate, one protein source, no blend
- Grass-fed, rBGH-free, from cows not treated with antibiotics, printed on the jar
- Sweetened with stevia leaf, flavored naturally, no colors
- Sunflower lecithin and a little xanthan gum so it mixes with a spoon; nothing else
- 90 calories, 0 g fat, 0 g sugar, 0 mg cholesterol, 20 g protein
- Five ingredients in vanilla, six in chocolate. One, if you buy unflavored
Want it brand by brand? See the whey protein comparison, or start with Whey Protein 101.
How to use it
One scoop, ninety seconds, and breakfast is handled.
1
The EnergyFirst shake
One scoop of ProEnergy, 8–12 oz of cold water or milk, a cup of frozen fruit, and a scoop of Greenergy. Blend. Twenty grams of protein and your greens before you leave the house.
2
After you train
One scoop in water within 45 minutes of the last set. Isolate absorbs fast, which is the point. If you take PreFuel before, this is the other half.
3
Wherever the day falls apart
Three in the afternoon, the airport, the drive home. A scoop and a shaker bottle is 90 calories of protein instead of 400 calories of whatever was nearest. Unflavored also disappears into oatmeal, yogurt or soup.
Liquid first, then the scoop, so nothing sticks to the bottom. Two scoops a day is common for anyone training hard or trying to hold on to lean muscle. How much protein do you need? Most adults do well at 0.7–1 gram per pound of lean body weight per day, spread across meals: the free Quick Start Guide walks through the math.
Before you buy
The questions people ask on the phone.
Straight answers. If yours is not here, call a health expert at 888.883.6374. A person picks up.
Isolate or concentrate: does it really matter?Yes, and it is the first thing to check on any label. Concentrate is the cheaper, less-filtered whey: 70–80% protein with lactose and fat left in. Isolate is filtered to over 90% protein with the lactose and fat removed. ProEnergy is 100% isolate; there is no concentrate in the jar. I am lactose intolerant. Can I drink it?Isolate has the lactose filtered out, and many lactose-intolerant customers drink ProEnergy without trouble. It is still made from milk and the label says so; if you have a milk allergy rather than an intolerance, this is not the product for you. What does “grass-fed” actually mean here?The whey comes from the milk of cows raised on pasture and not treated with rBGH growth hormone or antibiotics. It is on the label as a specification, not a marketing picture. What is it sweetened with? Does it taste like a protein powder?Stevia leaf extract and natural flavors: no sucralose, no acesulfame-K, no sugar alcohols. Vanilla tastes like vanilla, chocolate is real cocoa powder. If you want no taste at all, unflavored has one ingredient (whey protein isolate) and goes into anything. How does it mix? Do I need a blender?A shaker bottle or a spoon in a glass. The sunflower lecithin is there so it dissolves instead of clumping. A blender is only for when you want fruit in it. Is it for men or women? What about older adults?It is for anyone who is not getting enough protein at breakfast, which is most people. Protein needs do not fall with age. If anything the body gets worse at using it, so getting 20–30 grams in each meal matters more after fifty, not less. How does the 4-jar price work?Put any four jars in your cart, in any combination of flavors, and the cart prices every jar at $54.99 instead of $61.95. Shipping is free on any order over $50. What if I do not like it?Drink it for a month. If you are not glad you did, send the jar back within 30 days for a full refund. Opened is fine. Same guarantee as every EnergyFirst product: read the terms. Where is it made?In the USA. EnergyFirst has been making ProEnergy the same way since 1997.
What people say
A dietitian, and customers who have reordered since the nineties.
Ratings collected independently by Shopper Approved after real orders. The quotes are the ones we kept, mostly from people who have been buying this jar for years.
Jeanne P., Registered Dietitian, Certified Clinical Nutritionist“EnergyFirst gives me tremendous energy for 4–5 hours. I have no desire for coffee anymore. None!”
“I searched high and low to find a naturally sweetened protein powder that used only whey isolate. The ProEnergy has that and it tastes great!” Doug G.Customer story “I have been using this product since the mid 1990s, and I intend to continue until I’m horizontal.” David G.Verified order, 8 Oct 2021 “I have used your protein powder for several years and the flavor and the consistency of the product is always excellent.” John T.Verified order, 3 Sep 2020
Individual results vary. The rating and count are EnergyFirst’s Shopper Approved merchant rating. More on the success stories page.
Try it on us
Thirty-five shakes to decide. If you are not better off, we refund the jar.
That is the whole offer. Not an unopened-jar return policy. Actually drink it.
Choose a flavor
$61.95 a jar · any 4 jars and each is $54.99 · free shipping over $50 · questions? Call a health expert at 888.883.6374.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Contains milk. Individual results vary.
Turn the jar over
Supplement facts, all three flavors
Vanilla: 1 scoop (25 g), 35 servings. Chocolate: 1 scoop (27 g), 35 servings. Unflavored: 1 scoop (23 g), 40 servings. 2 lb (908 g) jar, and every jar is safe for the lactose intolerant.
Ultimate Vanilla · 25 g scoop · 35 servings
Chocolate Decadence · 26 g scoop · 35 servings
Natural Unflavored · 23 g scoop · 40 servings
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