Rule One Protein Powder is Near the Top of Our List of Best Protein Shakes

Rule One Protein Powder Review


Updated March 2019 – We are compensated for this review.

Rule One Protein Powder (R1 Protein) is made by the same people who created Optimum Nutrition and the legendary Whey Gold Standard. The following R1 Protein review will take and in depth look at this product and determine it’s effectiveness, taste and overall value.


In order to determine which protein powder is truly the best, you need to focus on the supplement facts. The ingredients are what make a supplement either effective or ineffective. There are certain ingredients you want to make sure are included in sufficient amounts, and there are certain ingredients you want to avoid. Rule One protein is among our favorites because it contains all of the beneficial ingredients and none of the detrimental ingredients.

There are 3 major problems with most protein powders that are often overlooked:

1) Almost all of them contain excessive amounts of unwanted ingredients. Among these are fat, sugar, carbohydrates, cholesterol, gluten, lactose, and added creamers. These ingredients are very detrimental to your health and will cause you to gain fat. Rule One protein is one of the only protein powders that contains zero fat, zero sugar, zero lactose, zero gluten, zero added creamers, only one gram of carbohydrates, and only five milligrams of cholesterol.

2) Almost every single protein powder out there uses forms of protein that lack purity, such as whey protein concentrate. Ideally, a protein powder formula should use strictly either whey protein isolate or whey protein hydrolysate, which are the purest forms of protein in existence. A pure and clean formula can allow for LEAN muscle gain, and can eliminate the risk of gaining fat. Rule One protein is one of the only protein powders on the market that uses strictly whey protein isolate and whey protein hydrolysate.

3) The vast majority of protein powders either do not contain any added BCAAs (branched chain amino acids) or they don’t contain a sufficient amount of BCAAs. It is of vital importance that you understand how crucial BCAAs are in order for the protein powder to be effective. The protein in itself can obviously aid in muscle recovery, but your muscles can not fully recover or grow without a sufficient supply of BCAAs. BCAAs are necessary for muscle growth and recovery. A protein powder that does not contain BCAAs can be extremely less effective. Rule One contains over 6 grams of BCAAs in every serving (including glutamine, valine, leucine, isoleucine, and many more), which is among the highest we have seen.

R1 Protein Company Profile

There is a reason behind the name of this company, and they really do live up to their name with every product. “Rule One” is that the best input = the best output. This is 100% accurate, especially when it comes to sports nutrition. What you are putting into your body, both pre and post workout, should be your most important consideration. The supplements that you take to complement your workouts are vitally important if you want to see real results.

The same guys who created the company Optimum Nutrition, one of the leading sports nutrition companies in the world, created Rule One. Their expertise in the world of sports nutrition is simply unmatched.

Rule 1 Protein Ingredients

The majority of people buying protein powders have no idea what they are buying because they don’t really understand how to read a nutrition label, and that’s why we’re going to explain the nutrition label in depth so you can fully understand what makes this protein powder our favorite one.

R1 Protein is one of the few protein powders you will be able to find that contains zero fat, zero sugar, zero lactose, zero gluten, zero added creamers, only one gram of carbohydrates, only five milligrams of cholesterol, only 50 milligrams of sodium, and only 105 calories per serving.


Enough about what is NOT in the product, lets talk about what IS in it. R1 Protein contains 25 grams of protein per serving, which is more than enough to allow your muscles to recover. However, as I said before, most protein powders only contain 1 ingredient for recovery: protein. In order to fully recover as quickly as possible and experience maximum muscle growth, you need BCAAs (branched chain amino acids).

R1 Protein is absolutely jam packed with BCAAs, which can allow you to experience muscle growth much faster. And when we say jam packed, we mean JAM PACKED. There are over 6 grams of 18 different BCAAs in every serving.

In addition to aiding growth and recovery, BCAAs also support fat loss by encouraging your body to use body fat for fuel during your workouts rather than muscle. This large of an amount of BCAAs can help you burn fat and replace it with lean muscle every time you follow up your workout with an R1 Protein shake.

Your muscles can also be much less sore after your workouts due to the potentially increased recovery rate, in addition to the fact that your workouts themselves can be much more productive due to the increased levels of strength and endurance the BCAAs can allow for.


R1 Protein also contains added Glutamine, which is a great ingredient for the improvement of protein metabolism. Glutamine is also known to be amazing for supporting human growth hormone (HGH) levels. Glutamine is absolutely vital in order to get as much out of your workouts as possible because an increase in HGH levels could mean an increase in muscle growth.


As I touched on before, a lot of companies use un-pure protein blends because it lowers production costs. An example of this would be whey protein concentrate- if you see this on the label of a protein powder, we recommend you don’t buy that product unless it claims to use mostly whey protein isolate or whey protein hydrolysate and only a small amount of whey protein concentrate. In fact, we recommend you don’t buy any protein powder that has any form of protein on the label other than whey protein isolate and whey protein hydrolysate.

At this point, you know that the two purest forms of protein in existence are whey protein hydrolysate and whey protein isolate, but you’re probably thinking, “Who cares? Why wouldn’t I just pay less money for a less pure protein powder?” Well if you want to go the cheap route and pay less money for a protein powder that will produce less results (if it produces any results at all), then you can do that.

However, I’m going to explain in the next section why it’s worth paying a few extra bucks for a purer formula. Read the following “Rule One Protein Overall Effectiveness” section in order to learn why it’s important to pay a few extra dollars for the purest protein available rather than going the cheap route.

TIP: Take A Second To Compare The R1 Nutrition Label Below To That Of The Protein Powder You Currently Use

Rule One Protein Supplement Facts

Order Rule One Protein Powder with Exclusive Coupon Code



Rule One Protein Overall Effectiveness

R1 Protein is highly ranked because of what goes into it, because like they say, better input = better output. They could not be more right about that. What you put into your body after your workout is absolutely key if you really want to see amazing results. With ingredients like this product has, you can be pretty confident in its effectiveness.

Whether you are using it to put on muscle or to simply help your body recover after a tough workout, it is well-equipped to be a tremendous help.

The reason it is so important to choose whey protein isolate and whey protein hydrolysate over other less pure types of protein can be summed up in one word: RESULTS. When you use a protein powder that contains un-pure forms of protein, fat, sugar, high carbs, high sodium, and high cholesterol (none of which are included in the Rule One Protein formula), you might still gain muscle, but you can also gain FAT. You need a clean formula if you want to gain lean muscle and leave the fat behind. A clean formula is a lean formula.

The muscle you can gain with this product is likely to be very lean because of the unhealthy ingredients they chose to leave out, and you could gain it quickly because of the combination of extremely pure protein and a large amount of BCAAs. Users (including myself) have reported significant muscle gains in a matter of WEEKS through the use of R1 Protein.

How Does R1 Protein Taste?

If you know a decent amount about nutritional supplements, you’re probably thinking that there is no way this product can taste good because of how nutritious it is. Extremely nutritious products tend not to taste good because they don’t contain any sugar or fat, and the sodium count is low.

Despite how pure the formula is, R1 Protein tastes amazing. The consensus among our staff is that the chocolate flavor tastes the best followed closely by the vanilla. Although healthy products generally don’t taste great, that is not the case with R1 Protein. The bottom line is if you dread taking your protein shake everyday, it’s easy to skip it. R1 Protein is the exception. You don’t sacrifice the health benefits in order to drink a delicious shake.

The Pros

  • Zero Fat
  • Zero Sugar
  • Zero Lactose
  • Zero Gluten
  • Low Carbohydrates
  • Low Cholesterol
  • Low Calories
  • Low Sodium
  • Uses Strictly Whey Protein Isolate and Hydrolysate
  • Over 6 Grams of BCAAs Per Serving; 18 Different Kinds of BCAAs
  • Added Glutamine
  • Great Taste

The Cons

Pure ingredients cost more than cheap ingredients that lack purity, so this is not the most inexpensive protein powder on the market (you pay for quality). However, after tedious research, we have found the website that has the lowest price available and provided the link to that website below…plus you can use the discount code we provided to save 10%.


Hopefully this Rule One Protein Powder review has made it abundantly clear that this is among the healthiest supplements you can take. It does not contain any of the unwanted ingredients that 99% of protein powders out there contain, and it contains a ton of helpful nutrients for effective muscle recovery and growth. If the best input (supplement) gives you the best output (results), and you want to see serious results, then this is the product we recommend you start taking.

Order Rule One Protein Powder with Exclusive Coupon Code




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Joe Costello
Nutrition & Wellness Consultant
Joe Costello is a Nutrition & Wellness Consultant, certified by the American Fitness Professionals & Associates (AFPA), author, and internet blogger. Joe has more than 9 years of experience in the sports nutrition industry and over 3 years of experience as a supplement and nutrition blogger. As a certified NWC who specializes in dietary supplements, Joe strives to deliver accurate, comprehensive, and research-backed information to his readers. You can find more of Joe’s work including his E-Books about fitness and nutrition at his official website, or connect with him on LinkedIn, Facebook, Instagram, Vimeo, or YouTube. Joe Costello is one of the founders of and years after the creation of the site, partnered with TEK Naturals, a nutritional supplement company.