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Nutraceuticals--a pharmaceutical viewpoint: part II.

Gil Hardy¹, Ines Hardy, Patrick A Ball

¹Pharmaceutical Nutrition Research Group, Witney, Oxford, UK.

Current Opinion in Clinical Nutrition and Metabolic Care

|October 15, 2003

Summary

Naturally sourced nutraceuticals offer benefits for immunity and chronic diseases, but quality control is crucial. Careful monitoring of these potent compounds is needed to maximize benefits and minimize risks.

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Area of Science:

Pharmacology
Nutritional Science
Gerontology

Background:

Nutraceuticals, derived from natural sources, are increasingly used for health benefits.
Their potent biological actions impact immunity, aging, and chronic diseases like cancer.

Purpose of the Study:

To review pharmaceutical and pharmacological aspects of naturally sourced nutraceuticals.
To evaluate the benefits and risks of nutraceuticals administered alone or in combination.

Main Methods:

Literature review of pharmaceutical and pharmacological data.
Analysis of studies on vegetable extracts, selenium, and antioxidant vitamins.

Main Results:

Positive effects observed for immunity and chronic disease markers with specific nutraceuticals.

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No cardiovascular benefits found for vitamin mixtures; potential harm identified.

Inconsistent quality and bioavailability challenge clinical efficacy of purified substances versus natural extracts.

Conclusions:

Nutraceuticals demonstrate significant biological activity and clinical benefits, but risks require careful management.
Enhanced quality control of raw materials, processing, and formulation is essential.
Balancing pharmaceutical regulation with accessibility is key to maximizing benefits and minimizing risks.