Sweetened only with monk fruit
Monk Fruit Protein Powder
Plant protein sweetened with monk fruit and nothing else. No stevia, no erythritol, no sucralose and no added sugar.
4.9 average from 553 reviews
Sweeteners
Monk fruit is the only sweetener in either protein.
Choose your protein
Optimal uses organic monk fruit, with 26g of protein and 0g sugar. Foundational has 18g of protein plus organic greens, fruits and adaptogens.
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Optimal Plant Protein
Our simplest formula: organic pea and brown rice protein, vanilla and monk fruit.
- Protein
- 26g per serving
- Protein from
- Organic pea and brown rice
- Sweetened with
- Organic monk fruit
- Sugar
- 0g
- Certified
- Organic, Non-GMO, gluten-free
Best for: the most protein from the fewest ingredients.
$69.99$59.49 with subscribe & save
Shop now -
Foundational Plant Protein
Plant protein plus organic greens, fruits and adaptogens in one shake.
- Protein
- 18g per serving
- Protein from
- Organic brown rice, pea and hemp
- Sweetened with
- Monk fruit
- Sugar
- Less than 1g
- Certified
- Non-GMO, gluten-free
Best for: one daily shake that covers more than protein.
$54.99$46.74 with subscribe & save
Shop now
From people picky about sweeteners
4.9 average from 553 reviews of our proteins. Quotes from verified buyers.
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Loyalty Has Shifted
“… I hate stevia. I was a little hesitant bc I also usually hate monkfruit, but I was willing to give it a shot. I AM SO GLAD I DID BC I LOVE IT. The taste is amazing and blends so well into my usual banana, berry, ginger, coconut milk blend. …”
Rachel R.Verified buyer · Foundational Plant Protein -
Best Ever
“I've been using plant protein powders for decades and this is the best in class. Checks all the boxes: organic, 26 grams of protein per serving, uses monk fruit for sweetener, mixes easily, and tastes delicious.”
Lina J.Verified buyer · Optimal Plant Protein -
I love this protein powder!
“It has clean ingredients and makes it easy for me to hit my protein intake for the day. … My dad and I both appreciate the monk fruit sweetener …”
NancyVerified buyer · Optimal Plant Protein
What is monk fruit?
Monk fruit, also called luo han guo, is a small round fruit native to southern China. Its sweetness comes from compounds called mogrosides. To make monk fruit sweetener, the fruit is crushed and the sweet parts are extracted into a liquid or powder.1
Monk fruit extract is about 100 to 250 times sweeter than sugar, so a tiny amount goes a long way, and it's considered a no-calorie sweetener.1
Is monk fruit safe?
In the U.S., monk fruit extracts are generally recognized as safe. The FDA has reviewed several notices for monk fruit extracts and hasn't questioned their use, and it hasn't set an acceptable daily intake.2
Not every regulator agrees yet. In 2019, the European Food Safety Authority said it didn't have enough data to conclude on monk fruit extract's safety as a food additive and asked for longer-term studies.3 That's a call for more research, not a finding that it's harmful.
Monk fruit vs. stevia vs. erythritol
| Sweetener | What it is | In our proteins? |
|---|---|---|
| Monk fruit | Extract of the luo han guo fruit | Yes, the only sweetener |
| Stevia | Purified extract of the stevia leaf | No |
| Erythritol | A sugar alcohol | No |
| Sucralose | An artificial sweetener | No |
For more on why some people skip the others, read is stevia in protein powder bad? and our guide to erythritol-free protein powder.
Watch for monk fruit blends
Because monk fruit is so sweet, many "monk fruit" sweeteners are blended with erythritol to bulk them up and make them taste more like sugar.1 A product that says "sweetened with monk fruit" on the front can still contain erythritol or stevia, so check the full ingredient list.
Our monk fruit protein powders
Optimal Plant Protein is sweetened with organic monk fruit and has 26g of protein and 0g of sugar per serving, from four organic ingredients.4 Foundational Plant Protein is sweetened with monk fruit extract and has 18g of protein and less than 1g of sugar, with organic greens, fruits and adaptogens.5 Neither contains stevia, erythritol, sucralose or added sugar.
Questions, answered
Monk fruit, how it compares and what to check on a label.
What is monk fruit sweetener?
An extract of monk fruit, or luo han guo, a small fruit native to southern China. Its sweet compounds, called mogrosides, make it about 100 to 250 times sweeter than sugar, with no calories.1
Is monk fruit safe?
Is monk fruit better than stevia?
Neither is unsafe. It mostly comes down to taste: some people notice a bitter aftertaste with stevia and prefer monk fruit. Both of our proteins use monk fruit and no stevia.
Does "sweetened with monk fruit" mean no erythritol?
Not always. Many monk fruit sweeteners are blended with erythritol,1 so check the ingredient list. Our proteins contain no erythritol.
Sources
- International Food Information Council. Everything you need to know about monk fruit sweeteners. Updated 2025.
- U.S. Food and Drug Administration. High-Intensity Sweeteners.
- EFSA Panel on Food Additives and Flavourings. Safety of use of monk fruit extract as a food additive in different food categories. EFSA Journal, 2019.
- fitppl. Optimal Plant Protein Nutrition Facts.
- fitppl. Foundational Plant Protein Supplement Facts.