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Organic Barley Grass Juice Powder

Pure Synergy
4.8
★ ★ ★ ★ ★
(1574 ratings)
Potassium 100 mg
Vitamin K 60 mcg
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Score76
A clean barley-grass powder offers modest vitamin K and potassium, but it is not a strong targeted heart or mineral supplement.
How scoring works
Quantity:5 Liquid(s) • (60 servings)
Goals:
Heart Health

Score 76

A clean barley-grass powder offers modest vitamin K and potassium, but it is not a strong targeted heart or mineral supplement.
How scoring works
$28.00($0.46 per serving)
iHerb
$ 29.54
Vitacost
$ 32.53
Vitacost
$ 32.53
Pure Formulas
$ 28.00
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Analysis

The single-ingredient barley grass juice powder keeps the formula simple and easy to understand. It supplies vitamin K1, a little potassium, and a small amount of iron.

Potassium is far below the amounts normally obtained from food, while vitamin K1 is only a supporting contribution. The heart-health fit is therefore limited and indirect.

The powder may suit people who want a concentrated grass-juice addition rather than a conventional multivitamin. Anyone seeking meaningful potassium or a focused cardiovascular formula will need a different approach.

Who is it for
  • Adults who want a single-ingredient greens powder
  • People comfortable mixing a grass-juice powder
Best for
  • Barley grass intake
  • Minor vitamin K1 and potassium contribution

Pros

  • Single organic grass ingredient
  • Vitamin K1 amount is disclosed
  • Low carbohydrate contribution

Cons

  • Potassium amount is small
  • Weak fit for focused heart support
  • Not a broad micronutrient formula

Warnings

  • Vitamin K1 can interfere with warfarin dosing, so intake should remain consistent when using that medicine

Nutrient quality

76 High impact

The concentrated grass-juice powder is simple and avoids aggressive dosing. Modest micronutrient amounts and limited heart-specific coverage constrain its usefulness.

Ingredient transparency

78 High impact

The active formula is short and fully quantified. Missing intake directions, non-active ingredients, and nutrient forms limit complete label review.

Customer satisfaction

73 High impact

The aggregate rating is favorable and backed by a large review volume. No specific comments are available to assess recurring problems or real-world fit.

Value for money

75 High impact

A focused formula and long supply support fair value. Limited nutrient breadth keeps the benefit modest for the intended purpose.

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Goals

Heart Health
Healthy Blood Pressure
Heart Health
Impact
Moderate effect
D Goal FitD- Strength of SupportD- CoverageA- Formula Quality
Vitamin K · 60 mcg

Barley grass supplies modest potassium and naturally occurring vitamin K1 within a whole-food powder. Those nutrients have some cardiovascular relevance but remain lightly supplied.

Vitamin K1 is not a substitute for the longer-lasting MK-7 form emphasized for arterial calcium handling. The formula is clean and transparent, yet it is too weak for targeted heart support.

Study evidence
Potassium Supportive 182 studies
Vitamin K Mixed 62 studies

Ingredients

IngredientAmount per serving
Calories
10 Calorie(s)
Total Carbohydrates
1 Gram(s)
Vitamin K1
60 mcg
Iron
0.5 mg
Potassium
100 mg
organic Barley grass juice powder
2500 mg
Gluten Free Adults 18–50 Kosher Dairy Free Organic
Report overview
Potassium · 100 mg OverallScore35
F Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyD Value

Barley grass supplies food-based potassium, but the specific compound is not identified. The 100 mg serving is low for focused potassium supplementation. A low serving cost helps, though the small amount limits cost efficiency.

View ingredientView products
Vitamin K · 60 mcg OverallScore29
F Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyF Value

The barley-grass powder naturally supplies 60 mcg of Vitamin K1. The whole-food source may fit general nutrition, but it does not provide MK-7 or a lipid carrier. Vitamin K-specific value is limited despite a moderate serving cost.

View ingredientView products
Loading alternative details
87 Performance

Potassium Bicarbonate 1.3 g

Nutricost
<p>The 494 mg potassium amount gives substantially deeper potassium support than the original 100 mg. Potassium bicarbonate is clearly identified, but the focused powder leaves out barley grass and vitamin K1.</p>
86 Performance

Liquid D-3 & MK-7

NOW
<p>The liquid provides 100 mcg MK-7 vitamin K2 plus 62.5 mcg vitamin D3, creating more focused bone and cardiovascular nutrient coverage than 60 mcg vitamin K1. It contains no potassium or barley grass, and vitamin K intake requires care with vitamin K antagonist medicines.</p>
87 Performance

Vitamin D3 25 mcg (1000 IU) & K2 120 mcg

Natural Factors
<p>The combination of 120 mcg MK-7 and 25 mcg vitamin D3 offers stronger targeted vitamin K and bone-support coverage. It does not replace the original potassium or barley grass, and the duplicate K2 source entries create minor label ambiguity.</p>
85 Budget

Potassium Chloride 365 mg

Nutricost
<p>The much lower-cost serving supplies 365 mg potassium, compared with 100 mg in the barley grass powder. It does not provide barley grass or vitamin K, but the clearly stated potassium amount offers more focused electrolyte support.</p>
81 Budget

Potassium Chloride Powder

NOW
<p>The inexpensive powder raises the disclosed potassium amount to 365 mg per serving. Its single-mineral design is easier to assess, although it omits both the barley grass and vitamin K1 found in the original.</p>
80 Budget

Potassium 99 mg

Thompson
<p>The low-cost capsule provides about the same potassium amount in an amino acid complex. It is a narrower option with no barley grass or vitamin K, so it suits targeted low-dose potassium use rather than replacing the original formula.</p>
83 Value

Potassium Citrate

NOW
<p>The economical powder supplies 448 mg potassium citrate, well above the original potassium amount. It offers focused electrolyte value with clear dosing, but no barley grass or vitamin K is included.</p>
88 Value

Vitamin K2 MK-7 100 mcg

Nutricost
<p>The meaningful MK-7 amount offers focused vitamin K support at a low serving cost. Compared with the original, it improves vitamin K specificity but removes potassium and the whole barley grass ingredient.</p>
86 Value

Vitamin K2 MK-7 (Menaquinone-7) 90 mcg

Carlson
<p>The clearly identified 90 mcg MK-7 serving provides a practical vitamin K2 option with strong label clarity. It is more targeted than the barley grass powder, though it omits potassium and requires caution with warfarin-type medicines.</p>
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Menaquinone-7 supplementation improves arterial stiffness in healthy postmenopausal women. A double-blind randomised clinical trial.
    Knapen MH; Braam LA; Drummen NE; Bekers O; Hoeks AP; Vermeer C · Thrombosis and haemostasis · 2016
    Randomized trial244 participantsHeart Health forVitamin K
  2. Vitamin K Supplementation to Improve Vascular Stiffness in CKD: The K4Kidneys Randomized Controlled Trial.
    Witham MD; Lees JS; White M; Band M; Bell S; Chantler DJ; Ford I; Fulton RL; Kennedy G; Littleford RC; McCrea IV; McGlynn D; Panarelli M; Ralston MR; Rutherford E; Severn A; Thomson N; Traynor JP; Struthers AD; Wetherall K; Mark PB · Journal of the American Society of Nephrology : JASN · 2021
    Randomized trial159 participantsHeart Health forVitamin K
  3. Six weeks phylloquinone supplementation produces undesirable effects on blood lipids with no changes in inflammatory and fibrinolytic markers in postmenopausal women.
    Kristensen M; Kudsk J; Bügel S · European journal of nutrition · 2008
    Randomized trial31 participantsHeart Health forVitamin K
  4. Oral potassium supplementation for management of essential hypertension: A meta-analysis of randomized controlled trials.
    Poorolajal J; Zeraati F; Soltanian AR; Sheikh V; Hooshmand E; Maleki A · PloS one · 2017
    Meta-analysis1,213 participants23 studies pooledHeart Health forPotassium
  5. Effect of Potassium Supplementation on Endothelial Function: A Systematic Review and Meta-Analysis of Intervention Studies.
    D'Elia L; Cappuccio FP; Masulli M; La Fata E; Rendina D; Galletti F · Nutrients · 2023
    Meta-analysis332 participants5 studies pooledHeart Health forPotassium
  6. Long-Term Potassium Monitoring and Dynamics in Heart Failure and Risk of Mortality.
    Núñez J; Bayés-Genís A; Zannad F; Rossignol P; Núñez E; Bodí V; Miñana G; Santas E; Chorro FJ; Mollar A; Carratalá A; Navarro J; Górriz JL; Lupón J; Husser O; Metra M; Sanchis J · Circulation · 2019
    Cohort study2,164 participantsHeart Health forPotassium
  7. Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
    D'Elia L; Barba G; Cappuccio FP; Strazzullo P · Journal of the American College of Cardiology · 2011
    Meta-analysis247,510 participants11 studies pooledHeart Health forPotassium
  8. Joint association of urinary sodium and potassium excretion with cardiovascular events and mortality: prospective cohort study.
    O'Donnell M; Mente A; Rangarajan S; McQueen MJ; O'Leary N; Yin L; Liu X; Swaminathan S; Khatib R; Rosengren A; Ferguson J; Smyth A; Lopez-Jaramillo P; Diaz R; Avezum A; Lanas F; Ismail N; Yusoff K; Dans A; Iqbal R; Szuba A; Mohammadifard N; Oguz A; Yusufali AH; Alhabib KF; Kruger IM; Yusuf R; Chifamba J; Yeates K; Dagenais G; Wielgosz A; Lear SA; Teo K; Yusuf S; PURE Investigators · BMJ (Clinical research ed.) · 2019
    Cohort study103,570 participantsHeart Health forPotassium
  9. Effects of potassium supplementation on office, home, and 24-h blood pressure in patients with essential hypertension.
    Kawano Y; Minami J; Takishita S; Omae T · American journal of hypertension · 1999
    Randomized trial55 participantsHeart Health forPotassium
  10. Vitamin K Intake and Atherosclerotic Cardiovascular Disease in the Danish Diet Cancer and Health Study.
    Bellinge JW; Dalgaard F; Murray K; Connolly E; Blekkenhorst LC; Bondonno CP; Lewis JR; Sim M; Croft KD; Gislason G; Torp-Pedersen C; Tjønneland A; Overvad K; Hodgson JM; Schultz C; Bondonno NP · Journal of the American Heart Association · 2021
    Cohort study53,372 participantsHeart Health forVitamin K
  11. The effect of vitamin K1 on arterial calcification activity in subjects with diabetes mellitus: a post hoc analysis of a double-blind, randomized, placebo-controlled trial.
    Bellinge JW; Francis RJ; Lee SC; Bondonno NP; Sim M; Lewis JR; Watts GF; Schultz CJ · The American journal of clinical nutrition · 2022
    Randomized trial149 participantsHeart Health forVitamin K
  12. Dietary Vitamin K1 Intake and Incident Aortic Valve Stenosis.
    Schultz CJ; Dalgaard F; Bellinge JW; Murray K; Sim M; Connolly E; Blekkenhorst LC; Bondonno CP; Lewis JR; Gislason GH; Tjønneland A; Overvad K; Hodgson JM; Bondonno NP · Arteriosclerosis, thrombosis, and vascular biology · 2024
    Cohort study55,545 participantsHeart Health forVitamin K
  13. Association between vitamin K1 intake and mortality in the Danish Diet, Cancer, and Health cohort.
    Palmer CR; Bellinge JW; Dalgaard F; Sim M; Murray K; Connolly E; Blekkenhorst LC; Bondonno CP; Croft KD; Gislason G; Tjønneland A; Overvad K; Schultz C; Lewis JR; Hodgson JM; Bondonno NP · European journal of epidemiology · 2021
    Cohort study56,048 participantsHeart Health forVitamin K