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RSP TrueFit, a meal replacement protein powder, is hands down one of our all-time favorite protein supplements. Packed with 25 grams of grass-fed whey protein, healthy fiber, and probiotics, there’s plenty to love.
If you are looking for a delicious and nutritious lean protein shake to support your fitness goals, look no further. In this review, we’ll explain why RSP TrueFit Lean Protein Shake is the perfect choice for athletes, bodybuilders, and anyone who wants to maintain or increase muscle mass while staying lean and healthy.
What Makes RSP TrueFit Stand Out?

There are several factors that make RSP TrueFit the best lean protein shake on the market:
High-Quality Protein:
One of the best things about TrueFit is that it contains 25g of grass-fed protein per serving. Made in the USA and sourced from domestic farms, rest-assured you’re not getting synthetic garbage.
So why is it significant that RSP uses grass-fed whey? According to Healthline:
Grass-fed beef may contain less total fat than grain-fed beef, but a lot more omega-3 fatty acids and CLA, which are both linked to health benefits.
Ultimately, if you want to reap the all the amino acid, muscle building benefits of protein, quality matters.
Organic Fruits and Vegetables:
Another standout benefit of RSP TrueFit is the addition of 12 non-GMO organic ingredients including dark leafy greens, fruits, and superfoods. From tart cherries and elderberries to broccoli and tomatoes, Truefit has the perfect blend to help fill nutritional dietary gaps.
And let’s not forget that all those fruits and veggies means you’ll be getting an extra 8 grams of fiber too. Fiber not only improves digestion, but can also increase satiety. In other words, you’ll feel fuller, longer and hopefully squash that pesky urge to snack all day.
Probiotics and Digestive Enzymes:
Last but not least, TrueFit contains 1 billion CFU of Bacillus Coagulans, a probiotic, for digestive health.
Bacillus Coagulans is considered a “good bacteria” that has helps the body digest food and regulate metabolism. Best of all, it is acid tolerant, so it won’t lose its effectiveness in the stomach.
Is RSP TrueFit Really Healthy For You?
Relative to a large majority of its competitors in the protein powder/meal replacement space, RSP TrueFit is one of the healthier options. However, without any third-party testing, it’s difficult to comment on the purity of the ingredients. And unfortunately for some reason, the supplement industry has some pretty slack regulations.

Based on the nutrition label alone, Truefit appears to offer a great mix of proteins, fats and carbs.
RSP TrueFit Nutrition Facts per serving:
- Total calories: 160
- 25 grams of grass-fed whey protein concentrate
- 3 grams of fat
- 13 grams of carbs
- 3 grams of sugar with 1 gram that’s added
- 8 grams of fiber
- 1 gram MCT oil
What Flavors Does It Come In and Does It Mix Well?

As of this writing, TrueFit has 4 different flavors: Chocolate, Vanilla, Cinnamon Churro, and Cold Brew Coffee. While all the flavors have been above average, the Cinnamon Churro is particularly tasty. Certainly worth your time to try it least once to see if you like it.
Unlike the stereotypical chalky, gritty, and lumpy protein powder, RSP Truefit seems to blend well with a minimal amount of effort. In our opinion, using a Blender Bottle or Vitamix is the best way to blend up your post-workout shake, but a regular ol’ spoon will work too.
Truefit protein powder mixes well in water and still tastes great. If you don’t mind the added calories, using milk or milk alternative makes it extra creamy and delicious.
How to Use RSP TrueFit Churro Protein Powder
Like most protein powders, RSP TrueFit can be added to a variety of different recipes. Some popular ways to use this powder include:
- Adding to smoothies or shakes: Simply add a scoop of powder to your favorite smoothie or shake recipe for a protein boost.
- Baking into protein bars or muffins: Mix the powder into your favorite baked goods recipes for an extra protein boost.
- Using as a post-workout recovery drink: Mix a scoop of powder with water or your favorite beverage for a fast-acting source of protein after your workout.
RSP Truefit Cinnamon Churro Smoothie Recipe
For a next-level delicious (and nutritious) smoothie, try this one. You’ll thank us later.
In a Vitamix, add the following:
- 1 scoop RSP Truefit Cinnamon Churro
- 8 oz cold water
- 1 heaping handful of spinach
- 1/2 cup frozen blueberries
- 1 whole frozen banana
- 1/2 cup frozen avocado chunks
- 1-2 scoops Vital Proteins collagen powder (plain or chocolate)
- 1/2 cup ice
Mix well on high and enjoy.
Where To Buy RSP TrueFit
There are now a number of online retailers that sell Truefit including RSP’s own website. Although Amazon is an option, we prefer to buy on Bodybuilding.com. Their shipping is fast and their prices beat the competition, especially if you subscribe to their BodyFit membership.
Unfortunately, like everything else lately, the price of Truefit protein powder has jumped up quite a bit in the last year. A 2 pound tub is running just north of $40. Yikes! It’s sad because you want to buy a quality protein, but it can be cost prohibitive if it’s not bought at a discount.
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