4.9/5 stars 8 reviews

Daily muscle & bone health

Protein40 is formulated with precisely the right amounts and types of protein with added minerals to help you maintain muscle & bone health as you approach 40 – and beyond.

  • Muscle health: Fight muscle loss and support muscle health with Protein40 that features 20g of 3 superior proteins AND 4g of leucine (BCAA).
  • Bone health: Bone is made up of 35-40% protein, yet you begin to lose this valuable matrix of bone protein as you age. Help build strong bones with Protein40’s powerful blend of proteins plus Vitamin D3 and Calcium.
What is the Replenishment Program Subscription?
90 Day Satisfaction Guarantee
Learn more

Purposefully Chosen Ingredients

Why Whey Isolate

Whey isolate Is a pure form of whey protein that is rapidly digested and stimulates short-term muscle protein synthesis. It’s important to note that not all protein types are created equal, especially when you compare types of whey protein. The whey isolate used in Protein40 is 90% pure protein and the highest quality form of whey when compared to other types of whey protein, such as whey concentrate.

Why 3 Types of Protein

Your body requires 20 amino acids to survive, 9 of which are essential, because your body can’t produce them and you need to get them from your diet. Protein40 is composed of three complete proteins designed to be absorbed over a sustained period of time to help promote prolonged protein synthesis.

  • Whey isolate – A pure form of rapidly digested whey that stimulates short-term muscle protein synthesis.
  • Micellar casein – Slowly digested protein that creates a prolonged effect on muscle protein synthesis. Micellar casein has been shown to reduce muscle protein breakdown.
  • Calcium caseinate – Digested slower than whey isolate and faster than micellar casein, Calcium caseinate also provides readily absorbable calcium for bone health.

Why Leucine

Leucine is an essential amino acid, meaning it can only be obtained by the body though the foods you eat because your body cannot produce it. Leucine is a key activator of protein synthesis and therefore is critical to stimulating tissue growth and repair. For individuals approaching middle-aged, you need more leucine (4g) to ensure that protein synthesis is as optimal as possible.

Why sugars (cane sugar, isomaltulose)

Cane sugar is added to support a small insulin response while maintaining a low glycemic index for Protein40. Insulin reduces protein breakdown, thereby complementing the increase in protein synthesis with Protein40 and facilitating tissue repair and development at the cellular level.



The essential role of protein in the body

Not all protein powders are created even close to equal. And, it’s important to know how essential the right proteins are to your muscle and bone health as you age. Because your protein needs substantially increase after 40 and given that you can’t get all the right proteins from your diet alone, it’s time to redefine how you think about aging with 3 kinds of high quality protein for daily muscle and bone support. Allow yourself to thrive by ensuring you receive right amount of essential amino acids to trigger and maximizes protein synthesis with Protein40. Let advanced science work for you to help create the future you want to live into. Learn more


Protein gaps in your diet & lifestyle

When you don’t get enough protein — that’s a problem. By the time you’re 40, your protein needs double , yet getting enough of the right protein from diet alone is difficult. Protein plays a vital role in your muscle, bone, and cardiovascular health, so it’s essential to provide your body with the precise proteins it needs to thrive. Protein40 is formulated for easy assimilation with 3 types of premier proteins that especially target food gaps when your bone and muscle can be most impacted. Learn more


How protein needs change as we age

An active future begins with the strength you build now. Yet, as early as age 35, your muscle mass starts to decline, accelerating up to 15% per decade, which can go unnoticed and cause loss of strength, power, speed of movement — and even impact your quality of life. Protein40 helps to fortify your muscles and bones with premium protein support at precisely the right amount throughout the day, to close the gaps in your diet and help you maintain the strength you need to live the life you want. Learn more

Nutritional Information


Ingredients: Calcium Caseinate, Whey Protein Isolate, Micellar Casein, Isomaltulose, Cane Sugar, Vitamin / Mineral Premix  (L-Leucine, Magnesium Oxide, Lecithin (sunflower), Mono- and Diglycerides, Sucrose, Chromium Picolinate, Starch, Gum Arabic, Tricalcium Phosphate, Vitamin D3, D-L-alpha-Tocopherol), Cocoa, Gum Arabic, Natural Chocolate Flavor, Natural Flavors, Sea Salt, Stevia.


Nutritional Facts:

15 servings  per container
Serving size:  2 scoops (40 g) 
Amount per serving
Calories  140  
% Daily Value*
Total Fat  1 g
Saturated Fat  0.5 g
Trans Fat  0 g
0 g
Cholesterol  10mg 3%
Sodium  105 mg 4%
Total Carbohydrates  13 g    
Dietary Fiber  4 g
Sugars  9 g
Protein  20 g
Vitamin D 100 %
Calcium 30 %
Iron 4 %
Magnesium 50 %
Chromium 170 %

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Calories 2,000 2,500
Total Fat 65g less than 85g
Saturated Fat 20g less than 25g
Cholesterol 300g less than 300g
Sodium 2400g less than 2400g
Total Carbohydrates 300g less than 375g
Saturated Fat 20g less than 30g
Calories per gram
Fat 9
Carbohydrates 4
Protein 4


Blend, shake, or briskly stir 2 level scoops (40g) into 8 fluid ounces of water.
For a creamier taste, mix with skim milk.

For best results take in the evening.

Store the canister in a cool, dry place.  Do not refrigerate.


Can I mix Protein40 with anything aside from water or skim milk?

Yes, you can mix Protein40 with almost anything! We do recommend that you try it with milk (for a creamier taste) or water first. You can also mix Protein40 with coconut water, almond milk, or your favorite beverage. Do not mix with hot water or hot beverage.

If I am under 40 years old, is this still a good protein for me?

Protein40 is an excellent protein to take at any age. While it’s designed to maximize protein synthesis for middle age and older individuals who have a harder time turning on muscle protein synthesis and tissue repair with the inclusion of 3 types of protein and added 2g of Leucine (4 total grams of Leucine in Protein40), it’s also effective for anyone younger than 40 to use to supplement their protein intake due to premium proteins and other ingredients.

I am lactose intolerant. Do the proteins in Protein40 have lactose in them?

Protein40 contains some lactose.

Why do you recommend that for best results, take in the evening?

When we sleep, the body is typically in a negative nitrogen balance, which means that we’re losing lean tissue, such as muscle. This process happens in order to provide precursors for the production of blood glucose in the liver. Research has found that providing a long activating protein supplement about 30 minutes before bedtime will result in supporting healthy protein balance and thereby increase muscle development, rather than lose muscle.

For more FAQs, visit our FAQ section.

Protein40 Reviews

Read what our customers have to say about Protein40®. Leave a review to share your own feedback.

8 reviews for Protein40®

  1. Rated 5 out of 5

    This is the best tasting protein powder I’ve ever had. It’s creamy and doesn’t taste like chemical chalk. I love that it’s not too sweet. I blend mine with unsweetened almond milk. Now we’ll see if muscles benefit over time.

  2. Rated 4 out of 5

    I really like it. Tastes awesome. It tastes less sweet than my regular protein drink which means its has less sugar and is probably better for me over all. I really like the creamy texture. The texture is consistent and isn’t gritty like other powders I’ve had.

  3. Rated 5 out of 5

    Protein40 mixes up great. I don’t know how many times I’ve mixed up protein, and you get chunks in your mouth. It tastes fantastic. I’ll be mixing it with skim milk or almond milk soon. It would make a nice hot chocolate.

  4. Rated 5 out of 5

    I’ve noticed an improvement in my overall strength since I’ve made Protein40 a part of my daily exercise routine. I could go longer and work harder at what I was doing, which was very noticeable to me, because it was getting difficult for me for awhile being a part-time chef with very early and long hours.

  5. Rated 5 out of 5

    With Protein40, I feel generally stronger, whereas I notice when I don’t get enough protein, I can feel physically tired, even when I haven’t really done anything.

Load more

We want to give you every resource possible to Nspire change.

Get recipes, fitness tips, education from our scientists, community and more.

We stand behind our products.

We want to bring the best functional foods and supplements to humans everywhere.

So if you’re not completely satisfied with any of our products, simply return them to us within 90 days of your order date, no questions asked.

Stay Up to Date on Our Latest.
Enter your info and we'll send you updates on new products, recipes, HumanN® stories, and promotions.