Synopsis

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

A "vegetable blend (proprietary)" typically refers to a mixture of various powdered or extracted vegetables, such as spinach, kale, broccoli, beetroot, carrot, and others. The use of vegetable blends to support cardiovascular health has some scientific rationale, though evidence is generally limited to studies on individual vegetables or their key nutrients, rather than on proprietary blends themselves. Vegetables are rich in dietary fiber, antioxidants, vitamins (like vitamin C and K), and minerals (such as potassium and magnesium), all of which have been associated with improved cardiovascular outcomes. For example, epidemiological research consistently links higher vegetable intake with reduced risks of heart disease and stroke. Specific compounds—like nitrates in beets, which may help lower blood pressure, or flavonoids in leafy greens—have been studied for their cardioprotective effects. However, there is a lack of direct clinical trials evaluating the efficacy of proprietary vegetable blends as supplements for treating or preventing cardiovascular disease. Most available blends rely on the general benefits of vegetable consumption extrapolated from whole food studies. Therefore, while the scientific foundation for vegetables supporting cardiovascular health is solid, the direct evidence for proprietary vegetable blends is weaker, and the overall evidence rating for such blends in cardiovascular disease is moderate at best.

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