THE PURSER WELLNESS LIBRARY

Let’s explore food storage

125 discoveries for your curiosity

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Nutrient referenceSep 17, 2026

Omega-9

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…d. Symptoms are not evidence that you need this supplement. Food sources Olive oil, avocados and many nuts contain oleic acid. Supplement forms A separate omega-9 supplement is not generally needed to meet an established essential-fat requi…

Nutrient referenceSep 17, 2026

L-Phenylalanine

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…rption and the clinical setting with a qualified clinician. Food sources Protein foods such as eggs, fish, poultry, meat, dairy, soy and legumes supply amino acids. The body also makes some amino acids. Supplement forms Single-amino-acid pr…

Nutrient referenceSep 17, 2026

Piperine

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…d. Symptoms are not evidence that you need this supplement. Food sources Black pepper. Supplement forms Concentrated black-pepper extracts differ from amounts used in cooking. Before taking a supplement Concentrated piperine can change medi…

Nutrient referenceSep 17, 2026

Pomegranate

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…d. Symptoms are not evidence that you need this supplement. Food sources Pomegranate arils and juice. Supplement forms Whole fruit, juice and extracts differ in fiber, sugar and concentration. Before taking a supplement Concentrated supplem…

Nutrient referenceSep 17, 2026

Potassium

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…thms. Medicines and fluid losses are common considerations. Food sources Potatoes; beans; lentils; yogurt; vegetables; fruit. Supplement forms Potassium chloride and potassium citrate. Before taking a supplement Kidney disease, certain bloo…

Nutrient referenceSep 17, 2026

Pycnogenol

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…d. Symptoms are not evidence that you need this supplement. Food sources A pine-bark extract, not an ordinary food. Other polyphenol-rich foods are not sources of this branded extract. Supplement forms Standardized French maritime pine-bark…

Nutrient referenceSep 17, 2026

Quercetin

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A flavonoid present in onions, apples and other plant foods. Also called: Quercetin What it does A flavonoid present in onions, apples and other plant foods. What symptoms can—and cannot—tell you There is no established dietary deficiency s…

Nutrient referenceSep 17, 2026

Resveratrol

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A plant compound found in grape skins and some other foods. Also called: Resveratrol What it does A plant compound found in grape skins and some other foods. What symptoms can—and cannot—tell you There is no established dietary deficiency s…

Nutrient referenceSep 17, 2026

Rhodiola

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…d. Symptoms are not evidence that you need this supplement. Food sources Usually encountered as an herbal preparation or concentrated extract, rather than a source of an essential nutrient. Supplement forms Powders, capsules and extracts va…

Nutrient referenceSep 17, 2026

Selenium

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… many settings and cannot be identified from fatigue alone. Food sources Seafood; meat; eggs; grains; Brazil nuts, whose selenium content is highly variable. Supplement forms Selenomethionine and sodium selenite. Before taking a supplement …

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