Super Fruit And Vegetable Proprietary Blend
Also known as: Super Fruit And Vegetable Proprietary Blend, Fruit and vegetable powder blends, Greens powders, Fruit and vegetable concentrates, Fruit and Vegetable Concentrate Blend
Overview
Fruit and Vegetable Concentrate Blends are dietary supplements composed of dehydrated and powdered fruits and vegetables, such as tomato, papaya, banana, apple, grape, blueberry, spinach, and carrot, among others. These blends are designed to offer a convenient source of phytonutrients, vitamins, minerals, and antioxidants found in whole produce, especially for individuals with insufficient fruit and vegetable intake. They are typically sold as capsules or powders and aim to support overall nutrition, cardiovascular health, and antioxidant status. While individual fruits and vegetables are extensively studied, research specifically on proprietary blends is moderate and often limited by the lack of transparency in their exact formulations. The available evidence primarily comes from systematic reviews and small randomized controlled trials focusing on the general category of fruit and vegetable concentrates.
Benefits
Supplementation with fruit and vegetable concentrates has shown evidence-based benefits, particularly in reducing cardiovascular risk factors. A systematic review indicated statistically significant reductions in total cholesterol, LDL cholesterol, systolic blood pressure (SBP) by approximately 4-10 mm Hg, and body mass index (BMI) in adults. These benefits appear more pronounced in populations with hypertension or metabolic syndrome. For instance, one randomized controlled trial in hypertensive subjects demonstrated an average reduction of 10 mm Hg in SBP after 90 days of supplementation. These blood pressure reductions are clinically meaningful for cardiovascular risk reduction. Secondary benefits include potential antioxidant and anti-inflammatory effects due to the presence of polyphenols and vitamins, though their clinical significance requires further investigation. Benefits typically manifest after 8-12 weeks of consistent supplementation.
How it works
Fruit and vegetable concentrate blends exert their effects through multiple biological pathways. Their rich content of antioxidants, such as polyphenols and vitamins, helps reduce oxidative stress throughout the body. These compounds can modulate endothelial function, leading to improved vascular tone and potentially lower blood pressure. The blends may also contribute to lowering LDL cholesterol through mechanisms involving phytosterols and fiber. Additionally, anti-inflammatory effects are attributed to various polyphenols, which can interact with inflammatory cytokines like TNF-α. The active compounds in these blends interact with the cardiovascular system by influencing blood pressure and lipid profiles, and with the metabolic system by potentially impacting BMI and inflammatory pathways. While absorption and bioavailability can vary depending on processing, these concentrates aim to provide standardized doses of bioactive compounds.
Side effects
Fruit and vegetable concentrate blends are generally considered safe, with no serious adverse effects reported in clinical trials lasting up to three months. The most common side effects, occurring in over 5% of users, are mild gastrointestinal discomfort or taste complaints, such as a 'grassy' taste. Uncommon (1-5%) or rare (less than 1%) side effects have not been consistently reported or documented. While no well-documented drug interactions exist, caution is advised for individuals taking antihypertensive medications due to the potential for additive blood pressure-lowering effects. There are no established contraindications, but individuals with known allergies to any of the included fruits or vegetables should exercise caution. Data on the safety and efficacy in special populations, such as pregnant or lactating women, children, or individuals with severe chronic illnesses, are limited.
Dosage
Studies have utilized daily doses of fruit and vegetable concentrates or powders ranging from approximately 500 mg to 2000 mg. An optimal dosage range of 1-2 grams daily of concentrated powder blends appears effective for achieving cardiovascular benefits. The maximum safe dose is not well-defined, but doses up to 2 grams daily have been safely used in clinical trials. For observed benefits, daily supplementation for at least 8-12 weeks is typically required. These supplements are available in various forms, including capsules or powders, with powders often mixed with water or juice. Taking the supplement with meals may enhance the absorption of fat-soluble vitamins present in the blend. No specific cofactors are required, but the overall quality of one's diet can influence the effectiveness of the supplement.
FAQs
Do proprietary blends work better than whole fruits and vegetables?
No, whole fruits and vegetables offer fiber and a broader nutrient matrix. Concentrates can supplement but not fully replace the comprehensive benefits of whole foods.
Are proprietary blends safe?
Generally, yes, they are considered safe. However, due to variable formulations, product transparency and third-party testing are important for quality assurance.
How soon can benefits be expected?
Improvements in blood pressure and lipid profiles typically become noticeable after 8-12 weeks of consistent daily supplementation.
Can they replace fresh produce?
No, these blends are designed as supplements to enhance, not substitute, a balanced diet rich in fresh fruits and vegetables.
Research Sources
- https://pmc.ncbi.nlm.nih.gov/articles/PMC6912365/ – This systematic review of randomized controlled trials investigated the effects of fruit and vegetable concentrate supplementation on cardiovascular risk factors in adults. It found significant reductions in total cholesterol, LDL cholesterol, systolic blood pressure, and BMI, highlighting the potential of these supplements to improve cardiovascular health.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC2732245/ – This randomized controlled trial examined the impact of a fruit and vegetable powder mix on hypertensive subjects over 90 days. The study reported a clinically significant 10 mm Hg reduction in systolic blood pressure, with no observed effect on body weight and no adverse effects, supporting its use for blood pressure management.
- https://barbend.com/greens-powders/ – This narrative review provides a summary of the scientific consensus regarding greens powders. It concludes that while these powders can offer antioxidant and nutritional benefits, they should not be considered a complete replacement for whole foods. The review also emphasizes the variability in quality and transparency among different proprietary blends.
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