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Home » Author Archives: Liz Marr, MS, RD

Author Archives: Liz Marr, MS, RD

sustainable agriculture

Sustainable agriculture produces abundant food and fiber without polluting the environment or natural resources while promoting vibrant rural communities. Essentially, sustainable agriculture applies the three basic tenets of sustainability – economic, environmental and social – to agriculture and farming communities. The term "sustainable agriculture" was legally defined by U.S. Congress in the 1990 Farm Bill as "an integrated system of plant and animal production practices having ... Read More »

molecular gastronomy

Molecular gastronomy is a discipline within food science that focuses on the chemical and physical changes that occur in cooking. Prior to the development of molecular gastronomy, food science has been dominated by food industry application, whereas molecular gastronomy focuses on science in the kitchen. Author Harold McGee writes about kitchen science and addresses the history of molecular gastronomy in his blog Curious Cook. Molecular ... Read More »


In 1983, the UN World Commission on Environment and Development (informally known as the Brundtland Commission) created a definition for sustainable development that has been been widely adopted and adapted: "Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs." In recent years, sustainability has come to ... Read More »

fair trade

Fair trade is a social movement that promotes sustainable development by seeking greater equity in international trade. Fair trade offers better trading conditions to marginalized producers and workers, particularly in the southern hemisphere. Several fair trade certification organizations offering product labeling programs exist, including TransFair USA, Fair Trade Labeling Organizations International and Fair Trade Federation. Fair trade certification programs typically address making improvements to ... Read More »


Nutrition is a popular topic in the blogosphere, yet the scientific soundness of nutrition advice varies widely. Because the training of individuals who identify themselves as nutritionists equally varies, it's useful to check their education and experience. Generally, a nutritionist is a health professional who advises about diet and health. However, it's important to know that depending on geographic location, ... Read More »


Nutrigenomics, short for nutritional genomics, is a relatively new science area examining how nutrition and food, at the molecular level, affect health through interaction with genes and, ultimately, gene expression. For example, in the future, nutragenomics research could be used to develop customized dietary plans or to modify the body's biochemical response to target foods, based on individuals' genetic composition. Primary areas of ... Read More »

food security

Food security at the individual or household level means access to enough nutritious food to sustain an active and healthy life. The Community Food Securition Coalition defines community food security as a "condition in which all community residents obtain a safe, culturally acceptable, nutritionally adequate diet through a sustainable food system that maximizes community self-reliance and social justice," which covers ... Read More »


Hunger is the uneasy or painful sensation caused by a lack of food, and the recurrent and involuntary lack of access to food. Hunger may be a consequence of food security. and may produce malnutrition over time. The Food and Agriculture Organizaton of the United Nations estimates that 963 million people are undernourished worldwide. Bloggers continue to bring attention to ... Read More »

registered dietitian

Food and nutrition are popular subjects in the blogosphere. And why not? Everyone eats and cares about their health. But how do you know whether nutrition advice is science-based? That's where registered dietitians (RDs) come in. An RD is a food and nutrition professional who has been certified by the American Dietetic Association's (ADA) credentialing agency, Commission on Dietetic Registration, as having completed the following: Bachelor's degree with ... Read More »


Culinology (think "culinary" meets "food technology") is an emerging discpline that blends culinary arts and food science to enhance flavor, consistency of foods in food manufacturing and food service. Or as Epicurious blogger Amy Sherman puts it, "Better dining through science."  The Research Chefs Association is a professional organization for chefs, food scientists and other professionals involved in culinology. Culinology, the official magazine of the ... Read More »