Echinacea
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Usually encountered as a botanical preparation rather than a food.
Supplement forms
Powders, capsules and extracts vary by species, plant part and preparation. Check t…
Elderberry
Some search terms matchedA berry used in cooked foods and extracts.
Also called: Elderberry
What it does
A berry used in cooked foods and extracts.
What symptoms can—and cannot—tell you
There is no established dietary deficiency syndrome for this specific botanical…
Frankincense
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Not an everyday food source. Essential oils and incense are not oral supplements.
Supplement forms
Oral, topical and aromatic preparations are not interchangeable. Do …
Ginkgo Biloba
Some search terms matched…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…
L-Glutamine
Some search terms matched…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…
Glutathione (GSH)
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Some occurs in vegetables and other foods. Dietary protein supplies building blocks the body uses to make it.
Supplement forms
Reduced glutathione and liposomal prepar…
Glycine
Some search terms matched…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…
Goji Berry
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Goji fruit, often sold dried.
Supplement forms
Dried fruit, powders and extracts are different preparations.
Before taking a supplement
Concentrated supplements can in…
Grape Seed Extract
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
A concentrated grape-seed preparation. Grapeseed oil and whole grapes are not equivalent sources of the extract.
Supplement forms
Capsules and tablets containing grape…
Green Tea
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Brewed green tea.
Supplement forms
Tea beverages and concentrated extracts differ substantially in caffeine and catechin exposure.
Before taking a supplement
Concentra…
Histidine
Some search terms matched…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…
Inositol
Some search terms matched…d. Symptoms are not evidence that you need this supplement.
Food sources
Beans, whole grains, nuts and fruit; the body also makes inositol.
Supplement forms
Myo-inositol and D-chiro-inositol are distinct forms.
Before taking a supplement
Co…
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