Almonds
Almonds
Unlike other flowering fruit trees that bear edible fruit, the almond tree’s kernel is the delicious nut found inside the fruit.  Almonds develop within a shell that is surrounded by a hull, similar to the fleshy part of a peach.
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Brazil Nuts
Brazil Nuts
Brazil nuts are the large seeds of giant trees grown in the Amazon jungle. These "seeds" come in clusters of 8 to 24 inside a hard, 4- to 6-inch pod that resembles a coconut.
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Cashews
Cashews
Cashews are believed to have originated in the northeast of Brazil, near the Equator. It is likely that Spanish sailors first introduced the cashew to Central America in the sixteenth century.
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Hazelnuts
Hazelnuts
Hazelnuts grow in clusters on the hazelnut tree in temperate zones around the world. The outer husk opens as the nut ripens, revealing a hard, smooth hazel colored shell.  Depending on the area of the world, they are either hand-picked or mechanically harvested.
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Macadamias
Macadamias
The Macadamia [mak-uh-DAY-mee-uh] is the youngest of the edible tree nuts, with commercial cultivation dating from 1858. Macadamia trees were first grown only for ornamental purposes - until the great-tasting nut was discovered!
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Pecans
Pecans
This native American tree nut is a member of the hickory family. Long before the arrival of the Europeans to the New World, pecans [pih-KAHNS; pih-KANS; PEE-kans] were an important food in the diet of the Indian tribes of the central and southern regions of the United States.
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Pine Nuts
Pine Nuts
The pine tree is one of the most familiar trees, both in Europe and North America, but it is mainly in the Mediterranean area where it obtains its highest importance of production and consumption. The nuts are found inside the pine cone.
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Pistachios
Pistachios
With an antiquity of around 9,000 years, the pistachio is one of the oldest edible nuts on earth. Originating from the Middle Eastern countries of Iran, Syria and Greece, the pistachio belongs, like the cashew, to the family of the Anacardiaceae.
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Walnuts
Walnuts
Walnuts are the oldest tree food known to man, dating back to 7000 B.C. The Romans called walnuts Juglans regia, “Jupiter’s royal acorn.” Early history indicates that English walnuts came from ancient Persia (called “Persian Walnuts”), where they were reserved for royalty.
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Nutrition Research

Cross-sectional assessment of nut consumption and obesity, metabolic syndrome and other cardiometabolic risk factors: The PREDIMED study.

Ibarrola-Jurado, N, M. Bulló, M. Guasch-Ferré, E. Ros, M.A. Martínez-González, D. Corella, M. Fiol, J. Wärnberg, R. Estruch, P. Román, F. Arós, E. Vinyoles, L. Serra-Majem, X. Pintó, M.I. Covas, J. Basora, J. Salas-Salvadó, on behalf of the PREDIMED Study Investigators, 2013.

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Primary prevention of cardiovascular disease with a Mediterranean diet.

Estruch, R., E. Ros, J. Salas-Salvadó, M.-I. Covas, D. Corella, F. Arós, E. Gómez-Gracia, V. Ruiz-Gutiérrez, M. Fiol, J. Lapetra, R.M. Lamuela-Raventos, L. Serra-Majem, X. Pintó, J. Basora, M.A. Muñoz, J.V. Sorlí, J.A. Martínez, M.A. Martínez-González, for the PREDIMED Study Investigators, 2013. Primary prevention of cardiovascular disease with a Mediterranean diet.

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A 14-Item Mediterranean diet assessment tool and obesity indexes among high-risk subjects: The PREDIMED Trial.

Martínez-González, M.A., A. García-Arellano, E. Toledo, J. Salas-Salvado´, P. Buil-Cosiales, D. Corella, M.I. Covas, H. Schrőder, F. Arós, E. Gómez-Gracia, M. Fiol, V. Ruiz-Gutiérrez, J. Lapetra, R.M. Lamuela-Raventos, L. Serra-Majem, X. Pintó, M.A. Muñoz, J. Wärnberg, E. Ros, R. Estruch, for the PREDIMED Study Investigators, 2012.

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