Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Fruit and vegetable blends, often found in proprietary supplement formulations, are used to support cardiovascular health primarily based on scientific rationale, though the strength of evidence is moderate. Epidemiological studies consistently link higher intake of fruits and vegetables with reduced risk of cardiovascular disease (CVD), likely due to their rich content of vitamins, minerals, fiber, and phytochemicals such as polyphenols and flavonoids. These nutrients may help reduce blood pressure, improve lipid profiles, decrease inflammation, and provide antioxidant effects—all factors beneficial to heart health.

Some clinical studies have evaluated the use of concentrated fruit and vegetable extracts (such as powders or capsules) on cardiovascular risk markers. For example, small-scale trials suggest that such blends can modestly lower blood pressure and improve endothelial function. However, these studies often use proprietary blends with undisclosed compositions, making it difficult to attribute effects to specific ingredients or replicate results. Additionally, the magnitude of benefit is typically less than that observed with whole-food consumption, and long-term outcomes (like reduced heart attack or stroke rates) have not been established.

In summary, while the theoretical basis for using fruit and vegetable blends to support cardiovascular health is strong, and some early human data exist, the evidence is not robust or conclusive. Whole fruits and vegetables remain the gold standard for CVD prevention, and concentrated proprietary blends should not be considered a substitute, but possibly a supplement to a healthy diet.

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