# CardioAid-S (Phytosterols)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/cardioaid-s
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** ADM CardioAid-S, β-sitosterol extract, Soybean phytosterol concentrate, Plant sterol extract, Deodorizer distillate phytosterols, Free phytosterol blend, Campesterol-sitosterol-stigmasterol complex

## Overview

CardioAid-S is a phytosterol-enriched ingredient derived from plant sources, with the primary bioactive compounds being beta-sitosterol, campesterol, and stigmasterol. These structurally compete with dietary and biliary cholesterol for intestinal absorption via the NPC1L1 transporter, thereby reducing circulating [LDL cholesterol](/ingredients/condition/heart-health) levels.

## Health Benefits

• Limited clinical evidence available - the research dossier contains no specific human clinical trials for CardioAid-S
• Extraction studies show high phytosterol yields (up to 1063.6 mg/100g) but lack health outcome data
• Structural similarity to cholesterol suggests potential cholesterol-management properties, though no clinical evidence provided
• Manufacturing achieves >92% purity of β-sitosterol through enzymatic or crystallization methods
• Further clinical research needed to establish specific health benefits

## Mechanism of Action

Phytosterols in CardioAid-S, primarily beta-sitosterol and campesterol, compete with cholesterol for incorporation into mixed micelles in the small intestinal lumen, reducing cholesterol solubility and uptake via the NPC1L1 transporter on enterocytes. Additionally, phytosterols downregulate hepatic PCSK9 expression and upregulate LDL receptor activity, promoting peripheral LDL clearance. At the cellular level, they may also inhibit ACAT (acyl-CoA:cholesterol acyltransferase), reducing cholesterol esterification and chylomicron incorporation.

## Clinical Summary

The broader phytosterol literature, which informs CardioAid-S's expected effects, includes meta-analyses of over 100 randomized controlled trials demonstrating that 2g per day of phytosterols reduces [LDL cholesterol](/ingredients/condition/heart-health) by approximately 8-10% in adults with hypercholesterolemia. However, no specific human clinical trials have been published using the CardioAid-S proprietary form, meaning efficacy data is extrapolated from generic phytosterol research rather than product-specific evidence. Extraction studies confirm CardioAid-S yields up to 1063.6 mg phytosterols per 100g, suggesting bioactive potency, but health outcome data for this specific formulation remains absent. The overall evidence for phytosterols as a class is considered moderate-to-strong by regulatory bodies including the FDA and EFSA, though CardioAid-S specifically carries a lower evidence grade pending dedicated trials.

## Nutritional Profile

CardioAid-S is a concentrated phytosterol mixture derived from plant sources, standardized to >92% purity of β-sitosterol as the primary bioactive compound. Phytosterol content reaches up to 1063.6 mg/100g as indicated by extraction studies. The primary bioactive constituents are plant sterols — predominantly β-sitosterol, with lesser fractions of campesterol and stigmasterol, which are structurally analogous to cholesterol (differing by an ethyl group at C-24 of the sterol side chain). Macronutrient contribution is negligible at functional serving doses (typically 0.8–2g/day range for phytosterol ingredients). No meaningful protein, carbohydrate, or fiber content is present given the concentrated, purified nature of the extract. Vitamins and minerals are not constituent components. Bioavailability: phytosterols are poorly absorbed intestinally (estimated 0.5–2% absorption rate for β-sitosterol versus ~50% for cholesterol), which is central to their proposed mechanism — competitive inhibition of cholesterol absorption in the gut lumen via displacement from mixed micelles. Fat-soluble matrix enhances bioavailability; esterified forms (phytosterol esters) may improve solubility and incorporation into food matrices. No human clinical pharmacokinetic data specific to CardioAid-S is available in the provided dossier.

## Dosage & Preparation

No clinically studied dosage ranges for CardioAid-S appear in the research. The studies focus on extraction yields and standardization (achieving 92.76% purity via ultrasonic pretreatment) rather than therapeutic doses. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Phytosterols at recommended doses of 1.5-3g daily are generally well tolerated, with the most commonly reported side effects being mild gastrointestinal symptoms such as bloating, diarrhea, or constipation. Long-term high-dose consumption may reduce absorption of fat-soluble vitamins, particularly beta-carotene and vitamin E, so co-supplementation or dietary monitoring is advisable. Phytosterols may additively enhance the LDL-lowering effects of statins such as atorvastatin and rosuvastatin, which can be beneficial but warrants physician oversight. Individuals with the rare genetic condition sitosterolemia should strictly avoid phytosterol supplements due to impaired sterol excretion leading to dangerous plasma accumulation; safety in pregnancy and lactation has not been adequately established and use is generally not recommended.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses for CardioAid-S phytosterols were found in the research dossier. The available studies focus exclusively on extraction techniques and yield optimization rather than health outcomes, with no PMIDs provided for clinical research.

## Historical & Cultural Context

No traditional or historical medicine context is documented in the research. Phytosterols are presented solely as modern industrial extracts from sources like deodorizer distillates, without reference to traditional medicine systems or historical use.

## Synergistic Combinations

Limited data available - no synergistic ingredients documented in research

## Frequently Asked Questions

### How much does CardioAid-S reduce LDL cholesterol?

Based on phytosterol class evidence, consuming approximately 2g of phytosterols daily from sources like CardioAid-S is associated with an 8-10% reduction in LDL cholesterol according to meta-analyses of over 100 RCTs. No CardioAid-S-specific clinical trials have confirmed this figure for the proprietary form. Results are typically observed within 2-4 weeks of consistent daily intake alongside a balanced diet.

### What is the recommended daily dose of phytosterols from CardioAid-S?

The FDA-authorized health claim for phytosterols specifies a minimum of 1.3g per day of plant sterol esters, while EFSA recommends 1.5-2.4g per day for meaningful LDL reduction. CardioAid-S extraction data indicates yields up to 1063.6 mg phytosterols per 100g, so dosing would depend on the final formulation concentration. Exceeding 3g per day is not recommended as benefits plateau and fat-soluble vitamin absorption may be impaired.

### Can you take CardioAid-S phytosterols with statins?

Yes, phytosterols and statins work through complementary mechanisms — phytosterols reduce intestinal cholesterol absorption via NPC1L1 competition while statins inhibit hepatic HMG-CoA reductase — allowing an additive LDL-lowering effect of roughly an additional 7-10% when combined. Clinical guidelines from the ACC and ESC acknowledge phytosterol supplementation as a reasonable adjunct therapy alongside statin use. Patients should inform their prescribing physician, as combined use may allow for statin dose reduction in some cases.

### Are phytosterols in CardioAid-S safe for long-term use?

Phytosterols have been consumed safely in fortified foods and supplements for over two decades, and regulatory bodies including the FDA and EFSA consider them safe at doses up to 3g per day for the general population. The primary long-term concern is reduced absorption of carotenoids, specifically beta-carotene, which may decrease by 10-20% with chronic use; eating a carotenoid-rich diet or supplementing with mixed carotenoids is a practical mitigation. Individuals with sitosterolemia, a rare autosomal recessive condition, must avoid all phytosterol supplements due to life-threatening vascular sterol accumulation.

### What plant source does CardioAid-S phytosterols come from?

CardioAid-S phytosterols are typically derived from vegetable oil deodorizer distillates (VODD), a byproduct of soybean, sunflower, or rapeseed oil refining, which are among the richest commercial sources of beta-sitosterol, campesterol, and stigmasterol. The extraction process concentrates these sterols to achieve the reported yield of up to 1063.6 mg per 100g. Individuals with soy allergies should verify the specific plant source of their CardioAid-S batch, though phytosterol isolates are generally considered low-allergen after processing.

### Is CardioAid-S phytosterols safe for children?

Phytosterols are generally recognized as safe food components, but pediatric-specific dosing data for CardioAid-S is limited. Most clinical experience with phytosterol supplementation comes from adult populations, so consultation with a pediatrician is recommended before giving CardioAid-S to children. The lack of branded clinical trials in younger age groups means safety profiles in this population remain unclear.

### How does CardioAid-S compare to other phytosterol supplements in terms of purity?

CardioAid-S achieves greater than 92% purity of β-sitosterol, indicating a high-quality extraction process. While this purity level is competitive in the market, direct head-to-head comparisons with other branded phytosterol products are not available in the provided research. The high purity suggests consistent potency across batches, though actual health outcomes relative to competing products have not been clinically compared.

### What is the scientific evidence quality for CardioAid-S specifically?

CardioAid-S lacks dedicated human clinical trials in the published literature, relying instead on extraction yield data showing phytosterol content of up to 1063.6 mg/100g. The ingredient's safety and efficacy are inferred from the known chemistry of phytosterols rather than brand-specific clinical evidence. For robust health outcome data, consumers should note that clinical evidence exists for phytosterols as a category, but not for this particular branded formulation.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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