The parsnip is a root vegetable related to the carrot. Parsnips resemble carrots, but are paler and have a stronger flavor. Like carrots, parsnips are native to Eurasia and have been eaten there since ancient times. Indeed, until the potato arrived from the New World, its place in dishes was occupied by the parsnip. Parsnips can be boiled, roasted or used in stews, soups and casseroles.

The turnip (Brassica rapa var. rapa) is a root vegetable commonly grown in temperate climates worldwide for its white, bulbous taproot. Small, tender varieties are grown for human consumption, while larger varieties are grown as feed for livestock. Turnips are notably popular in Europe, particularly in its colder parts, because they grow well in cold climates and can be stored for several months after harvest.

Orange juice (often abbreviated OJ in North America) is a fruit juice obtained by squeezing or pressing the interior of an orange. It is enjoyed as a beverage in many parts of the world and is often commonly associated with breakfast. Under U.S. law, products labeled "orange juice" must contain 100 percent real juice and pulp to be labeled as such. Orange drink may contain orange juice, but often contains added sugar. The largest exporter of orange juice is Brazil, followed by the United States (predominantly from Florida, where orange juice is the official state beverage).

Orange juice is commonly exported in dried form and infused in the destination country. Juice which is shipped in liquid form is traded as direct juice between producers. It is sold to consumers (in the U.S. and Canada) with the label "Not from concentrate."

Fresh orange juice generally has a fruity and pleasantly acidic taste. Besides water and sugar, it is an excellent source of vitamin C (ascorbic acid) and potassium. Some producers include additional citric acid or ascorbic acid in the juice beyond what is naturally found in oranges. Some also include other nutrients such as Calcium and Vitamin D, not found naturally in oranges. Citrus juices also contain flavonoids that are believed to have beneficial health effects. However, if drunk on an empty stomach, orange juice can exacerbate present gastro-intestinal conditions, and/or cause mild and temporary stomach upset.

Frozen Concentrated Orange Juice (FCOJ) is a commodity product traded on the major commodity exchanges, including the New York Board of Trade and the Brazilian Mercantile and Futures Exchange.

When water is added to freshly-unfrozen concentrated orange juice, it is reconstituted. Almost all orange juice sold in the United States is reconstituted juice. There is a huge difference in the volume of frozen concentrated orange juice and unprocessed juice and this makes a difference in the price the consumer is charged.

There is some disagreement about the quality of fresh-squeezed juice versus juice that has been processed into frozen concentrated orange juice and reconstituted. However, while it might seem that concentrating and freezing would reduce the freshness of the juice, the time required for the juice to be bottled/packaged and delivered to the consumer might reduce the flavor just as much as the concentration/freezing process.

Avocado (Persea americana) is a tree and the fruit of that tree, classified in the flowering plant family, Lauraceae. It is native to Central America and Mexico. The tree grows to 20 m (65 ft), with alternately arranged, evergreen leaves, 12-25 cm long. The flowers are inconspicuous, greenish-yellow, 5-10 mm wide. The pear-shaped fruit is botanically a berry or drupe, from 7 to 20 cm long, and weighs between 100-1000 g. It has a large central seed, 3-5 cm in diameter.

An average avocado tree produces about 120 avocados annually. Commercial orchards produce an average of 7 tonnes per hectare each year, with some orchards achieving 20 tonnes per hectare (FAO statistics). Biennial bearing can be a problem, with heavy crops in one year being followed by poor yields the next. The fruit is sometimes called an avocado pear or alligator pear, due to its shape and rough green skin. The avocado tree does not tolerate freezing temperatures, and so can be grown only in subtropical and tropical climates.