Most seeds come from fruit that naturally free themselves from the shell, but this is not the case in nuts such as hazelnuts, chestnuts, and acorns, which have hard shell walls and originate from a compound ovary. The general and original usage of the term is less restrictive, and many nuts (in the culinary sense), such as almonds, pistachios, and Brazil nuts, are not nuts in a botanical sense. Common usage of the term often refers to any hard-walled, edible kernel as a nut. Nuts are an energy-dense and nutrient-rich food source.

Botanically, a nut is a fruit with a woody pericarp developing from a syncarpous gynoecium. True nuts include, for example, chestnut, hazelnut and filbert. Culinarily, the term 'nut' is used much more widely, and includes examples of drupes (such as pecans and almonds) or seeds (such as pine nuts and peanuts).

Also widely known as nuts are dry drupes, which include pecans, almonds, macadamia (Macadamia integrifolia), candlenut (Aleurites moluccanus) and the water caltrop (Trapa bicornis). A drupe is an indehiscent fruit that has an outer fleshy part consisting of the exocarp, or skin, and mesocarp, or flesh, which surround a single pit or stone, the endocarp with a seed (kernel) inside. In a dry drupe, the outer parts dry up and the remaining husk is part of the ovary wall or pericarp, and the hard inner wall surrounding the seed represents the inner part of the pericarp.

Walnuts and hickories (Juglandaceae) have fruit that are difficult to classify. They are considered to be nuts under some definitions but are also referred to as drupaceous nuts.

In common use, a "tree nut" is, as the name implies, any nut coming from a tree. This most often comes up regarding food allergies; a person may be allergic specifically to peanuts (which are not tree nuts but legumes), whereas others may be allergic to the wider range of nuts that grow on trees.

The sweet potato arrived in Europe with the Columbian exchange. It is recorded, for example, in Elinor Fettiplace's Receipt Book, compiled in England in 1604.

Nuts are eaten by humans and wildlife. Because nuts generally have a high oil content, they are a significant energy source. Many seeds are edible by humans and used in cooking, eaten raw, sprouted, or roasted as a snack food, ground to make nut butters, or pressed for oil that is used in cooking and cosmetics.

Nuts used for food are a common source of food allergens. Reactions can range from mild symptoms to severe ones, a condition known as anaphylaxis, which can be life-threatening. The reaction is due to the release of histamine by the body in response to an allergen in the nuts, causing skin and other possible reactions. Many experts suggest that a person with an allergy to peanuts should avoid eating tree nuts, and vice versa.

The nuts linked to from this page are: acorn; almond; beech nuts; betel nut; brazil nut; bush mango; filbert; ginkgo nut; kola nut; candlenut; cashew; chestnut; coconut; hazelnut; macadamia; ogbono; palm nut; peanut; pecan; pine nut; pistachio; walnut.

The alphabetical list of all the nut-based recipes on this site follows, (limited to 100 recipes per page). There are 3274 recipes in total:

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Kale in Butter      Origin: Scotland	Katsu-karē (Cutlet Curry with Black Curry Sauce)      Origin: Japan	Khatta Meetha (Cabbage Curry)      Origin: India
Kale Moa (Samoan Chicken Curry)      Origin: Samoa	Kau Kau (Papuan Baked Sweet Potato)      Origin: Papua New Guinea	Kheer      Origin: India
Kale with Cream      Origin: Ireland	Kazakiye Riz (Kazkah Rice)      Origin: Kazakhstan	Khichiri Prawn Sauce      Origin: India
Kanamadhu Cake      Origin: Maldives	Ke'lagu'en Uhang (Prawns and Peppers)      Origin: Guam	Khnom Jin Namya (Catfish Curry over Noodles)      Origin: Thailand
Kanda (Beef Meatballs with Pumpkin Seeds)      Origin: Central African Republic	Ke'lagu'en Uhang (Prawns and Peppers)      Origin: Northern Mariana Islands	Khoresht-e Zereshk (Barberry, Lamb and Nut Stew)      Origin: Iran
Kanda ti Nyma      Origin: Central African Republic	Kedgeree 2      Origin: Fusion	Khoreshte Kalal (Lamb Stew with Barberry Sauce)      Origin: Iran
Kang Ped Pla-dook (Red Curry with Catfish)      Origin: Thailand	Kedgeree Fisherman's Pie with Winter Vegetable Topping      Origin: Britain	Khormya (Spiced Lamb with Yoghurt)      Origin: Kazakhstan
Kannoli tal-Irkotta (Ricotta-filled Cannelloni)      Origin: Malta	Kedjenou      Origin: Cote dIvoire	Khowsuey      Origin: Chile
Kansiyé      Origin: Guinea	Kedjenou II      Origin: Cote dIvoire	Khumb Matar (Mushroom and Green Pea Curry)      Origin: India
Kansiyé avec 'Mafe' (Smoked Chicken in Peanut Sauce with Mashed Plantains)      Origin: Guinea	Kehp sukusuk (Wet Yam)      Origin: Federated States Micronesia	Khumbi Aloo (Mushroom and Potato Curry)      Origin: India
Kansiyé de Poisson (Fish Kansiyé)      Origin: Guinea	Kejenou avec Agouti (Kejenou with Cane Rat)      Origin: Cote dIvoire	Kibbeh      Origin: Lebanon
Kansiyé de Poulet (Chicken Kansiyé)      Origin: Guinea	Kelaguen Mannok (Chamorro-style Chicken Salad)      Origin: Guam	Kibbeh      Origin: Syria
Kanyah      Origin: Sierra Leone	Kelaguen Mannok (Chamorro-style Chicken Salad)      Origin: Northern Mariana Islands	Kilo'a      Origin: Tokelau
Kanyah II      Origin: Liberia	Kelia Ayam (Indonesian Chicken Curry)      Origin: Indonesia	Kima (Chopped Beef and Chilli Fry)      Origin: Senegal
Kanyan (Garri and Peanut Snack)      Origin: Libeia	Kentish Cobnut Cake      Origin: England	King Cake      Origin: Europe
Kapr na černo (Carp in Black Sauce)      Origin: Czech	Kenyan Kima (Chopped Beef Chilli-fry)      Origin: Kenya	King Scallop in Molee Sauce      Origin: Manx
Karē Raisu (Japanese Curry Rice)      Origin: Japan	Kenyan Mchuzi wa Samaki (Swahili Fish Curry)      Origin: Kenya	Kingdom of Fife Pie      Origin: Scotland
Kare Ayam Jawa (Javanese Chicken Curry)      Origin: Indonesia	Kenyan Samosas      Origin: Kenya	Kip Pastei (Surinamese Chicken Pie)      Origin: Suriname
Kare Kare      Origin: Philippines	Kerala Masala Powder      Origin: India	Kipper Cream      Origin: Scotland
Kari Ayam (Malaysian Chicken Curry)      Origin: Malaysia	Kerala Plantain Errisery      Origin: India	Kiri Bath (Coconut Milk Rice)      Origin: Sri Lanka
Kari Ayam (Malay Gravy Chicken Curry with White Pumpkin)      Origin: Malaysia	Kerala-style Snake Meat Curry      Origin: India	Kiribati Coconut Crab Curry      Origin: Kiribati
Kari Ikan (Malaysian Fish Curry)      Origin: Malaysia	Keralan Garam Masala      Origin: India	Kiribati Poi      Origin: Kiribati
Kari Kambing (Mutton or Goat Curry)      Origin: Indonesia	Kesar Mango Curry      Origin: India	Kittitian Pumpkin And Lentil Curry      Origin: Saint Kitts
Kari Koko (Seychellois King Prawn and Coconut Curry)      Origin: Seychelles	Ketoun (Guinean Root Vegetable Porridge)      Origin: Guinea	Kittitian Style Conkies      Origin: Saint Kitts
Kari Velouté (French Curry Sauce)      Origin: France	Khajoor ke Laddu (Date and Fruit Sweetmeat Balls)      Origin: Pakistan	Kiwi Lamb Curry      Origin: New Zealand
Karithopasta (Greek Walnut Syrup Cake)      Origin: Greece	Khajoor Pak (Date and Milk Sweetmeats)      Origin: Pakistan	Knol Khol Poriyal (Spicy Fried Kholrabi)      Origin: India
Karithopita (Greek Walnut Cake)      Origin: Greece	Khalia (Georgian Spicy Beef Stew)      Origin: Georgia	Kobi Bhaji      Origin: India
Karni Mulá ku Zuurkool (Minced Beef with Sauerkraut)      Origin: Curacao	Khalva (Syrup Walnut Dessert)      Origin: Azerbaijan	Kobi Sabji (Cabbage Sabji)      Origin: India
Kashata na nazi (Ugandan Coconut Candy)      Origin: Uganda	Khanom Jeen Nam Ya (Khanom Jeen Noodles)      Origin: Thailand	Koeki di Pinda y Chuculati (Peanut and Chocolate Chip Cookies)      Origin: Aruba
Kashmiri Chicken Curry      Origin: India	Khanom Jeen Nam Ya (Khanom Jeen Noodles)      Origin: Thailand	Kofta Curry (Meatball Curry)      Origin: Pakistan
Kastaneli Pasta (Chestnut Cake)      Origin: Turkey	Khao Man (Coconut Rice)      Origin: Brunei	Kohlapuri Chicken (Maharashtra Chicken Curry)      Origin: India
Kastanie Kuchen (Chestnut Cake)      Origin: Switzerland	Khao Pune (Chicken Curry Noodles)      Origin: Laos	Kokada (Aruban Coconut Candy)      Origin: Aruba
Katakou au Poisson Frais (Palm Soup Base with Fresh Fish)      Origin: Cote dIvoire	Kharcho (Georgian Beef and Rice Soup)      Origin: Georgia
Katami Satsabeli Baga (Duck in Georgian Walnut Sauce)      Origin: Georgia	Khatai Biscuits      Origin: Afghanistan

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