BioStacks
Best for
Ingredients (6)
Magnesium
100%Dose
150 mg
Target
100–400 mg
Form
Standard
Potassium
100%Dose
100 mg
Target
99–500 mg
Form
Standard
Vitamin C
24%Dose
60 mg
Target
250–2000 mg
Form
Budget
Chloride
20%Dose
450 mg
Target
—
Form
Standard
Boron
22%Dose
0.7 mg
Target
3–6 mg
Form
—
Nutrition
Calories, macros & sodium.
- Sodium5 mg
Other Ingredients (8)
Agave NectarSweetener
Agave nectar is ~70–90% fructose by composition (vs sucrose's 50% and high-fructose corn syrup's 55%). Low glycemic index is a fructose artifact — fructose bypasses insulin-mediated metabolism and is preferentially shuttled to hepatic de novo lipogenesis. Chronic high-fructose intake is associated with hepatic steatosis, insulin resistance, and adverse lipid changes (Stanhope 2009 RCT). The 'natural' / 'healthier than sugar' marketing positioning contradicts the metabolic profile. Per brand voice: this is a clearer case than most of marketing-vs-science divergence.
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Potassium SorbatePreservative
Natural preservative derived from sorbic acid
Fruit Juice (unspecified)Colorant
Juice or juice concentrate used primarily for natural color and flavor in gummies
PotassiumMineral
Essential mineral naturally present in many plant-based supplement ingredients
Purified WaterSolvent
Water meeting USP specifications used as solvent/vehicle in gummies and liquids
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
How to Take It
Best taken in the evening
The Magnesium in it is what pulls this toward the evening. Take it with food — the potassium in it is what makes this kind of product feel nauseating on an empty stomach.
With food
Space it a couple of hours from Iron and Calcium
On the label
SHAKE VIGOROUSLY. Take 1 capful (2 tbsp.) daily in a glass of juice or water or take straight followed by juice or water. For smaller or larger individuals, adjust serving size accordingly. If you are not accustomed to using a concentrated mineral supplement, start with half the suggested serving size per day and increase gradually over a period of at least 7 days. Always drink plenty of fluids when taking this product. Rinse cap after use.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$29.99
Near the median of 150 heart supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.