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Natural food

Natural food is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Natural food rather than just read about it. In short: Natural food and all-natural food are terms in food labeling and marketing with several definitions, generally denoting foods that are not manufactured by processing. In some countries like the United Kingdom, the term "natural" is defined and regulated; in others, such as the United States, the term natural is not enforced for food labels, although there is USDA regulation of organic labeling.

Natural food — main illustration
Natural food — illustration

Key takeaways

  • Natural food belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Natural food to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Natural food from memory before moving on to harder problems.

Reference excerpt

Natural food and all-natural food are terms in food labeling and marketing with several definitions, generally denoting foods that are not manufactured by processing. In some countries like the United Kingdom, the term "natural" is defined and regulated; in others, such as the United States, the term natural is not enforced for food labels, although there is USDA regulation of organic labeling. The term is assumed to describe foods having ingredients that are intrinsic to an unprocessed food.

Diverse definitions While almost all foodstuffs are derived from the natural products of plants and animals, 'natural foods' are often assumed to be foods that are not processed, or do not contain any food additives, or do not contain particular additives such as hormones, antibiotics, sweeteners, food colors, preservatives, or flavorings that were not originally in the food. In fact, many people (63%) when surveyed showed a preference for products labeled "natural" compared to the unmarked counterparts, based on the common belief (86% of polled consumers) that the term "natural" indicated that the food does not contain any artificial ingredients. The term is variously misused on labels and in advertisements. The international Food and Agriculture Organization's Codex Alimentarius does not recognize the term 'natural' but does have a standard for organic foods.

History The origin of the concept of "natural foods" has been traced to Sylvester Graham, for whom Graham crackers are named, in the 1830s. Graham argued that processed foods contravened God's laws of health, and that whole wheat should be eaten in its natural, unadulterated form. He described baking bread with white flour as "unnatural". British agronomist Guy T. Wrench in 1936 and organic farmer J. I. Rodale in 1948 both authored books associating longevity with unprocessed natural foods from the Hunza diet. Rodale claimed that the Hunza people lived to be hundreds of years old and were never ill because of their diet of natural foods. However, the claims had no basis in fact and were refuted by a team of Japanese researchers from Kyoto University in 1960 who had examined Hunza inhabitants. The medical team found rampant signs of poor health amongst the Hunza, including goitre, malnutrition, rheumatism, tuberculosis and high levels of infant mortality. Both Rodale and Wrench are cited as influencing the organic food movement in the United States. Natural foods were promoted by cookbook writers in the United States during the 1970s with cookbooks emphasizing "natural," "health" and "whole" foods in opposition to processed foods which were considered bad for health. In 1971, Eleanor Levitt authored The Wonderful World of Natural Food Cookery which dismissed processed foods such as readymade dinners, cookie mixes, and cold cuts as being full of preservatives and other "chemical poisons." Jean Hewitt authored the New York Times Natural Foods Cookbook, an influential cookbook on the use of natural foods. Hewitt suggested that before large-scale mechanized farming and modern food production methods, people ate "fresh, natural and unrefined foods for granted" and but have since abandoned this way of eating for highly processed foods which are devoid of flavor and nutrition. Hewitt's cookbook offered "the textures, tastes and nutritional benefits of the natural, fresh foods that grandmother knew" and dedicated the recipes to "the thousands of people across the country who believe in, and practice, the natural way of eating for good health".

Definition by process and by product

United Kingdom In the United Kingdom, the Food Standards Agency has published criteria for the use of several terms in food labeling. The guidance, in general, restricts the use of natural foods that have "ingredients produced by nature, not the work of man or interfered with by man." Natural flavorings are explicitly defined by separate laws. There are different standards for various types of food, such as dairy products. It also gives standards for some food processing techniques, such as fermentation or pasteurization. The standard explicitly rules out "foods derived from novel processes, GM or cloning."

Definition by process only

Canada The Canadian Food Inspection Agency restricts the use of "natural" to foods that have not been significantly altered by processing and gives examples of processes that do or do not significantly alter food. This includes two specific additional requirements:

A natural food or ingredient of a food is not expected to contain, or ever to have contained, an added vitamin, mineral nutrient, artificial flavoring agent or food additive. A natural food or ingredient of a food does not have any constituent or fraction thereof removed or significantly changed, except the removal of water.

Israel A specific ingredient can be called "natural" if it did not go through any processing except for the listed ones. The whole food can be called "natural" if the food is not a blend of foods (even if they are all-natural), has no added ingredients, and underwent only the specified processes.

Lack of definition

United States

… excerpt ends here. Continue reading the full article.

Illustrations

Natural food: Blue sugar-coated Smarties chocolates were introduced by Nestlé in the UK in February 2008, using a "natural" blue dye derived from the cyanobacterium spirulina (bottom). The product had previously used a synthetic blue dye (top).[1]
Blue sugar-coated Smarties chocolates were introduced by Nestlé in the UK in February 2008, using a "natural" blue dye derived from the cyanobacterium spirulina (bottom). The product had previously used a synthetic blue dye (top).[1]
Natural food: The term "natural" is applied to many foods, but does not have a consistent meaning.
The term "natural" is applied to many foods, but does not have a consistent meaning.

Worked examples

Example 1 — a first encounter with Natural food

Start with the simplest possible case. Write down what Natural food claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Natural food before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Natural food ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Natural food

In research
Natural food appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Natural food in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Natural food is common in secondary-school and first-year university syllabi. It links to neighbouring topics Food processing, Food retailing, Foods, so understanding it makes those chapters shorter.
In everyday life
Look for Natural food outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Natural food in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Natural food means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Natural food out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Natural food in simple terms?

Natural food and all-natural food are terms in food labeling and marketing with several definitions, generally denoting foods that are not manufactured by processing. In some countries like the United Kingdom, the term "natural" is defined and regulated; in others, such as the United States, the te…

Why does Natural food matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Natural food?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Natural food.

Tags

  • Food processing
  • Food retailing
  • Foods
  • Product certification

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