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Chapter 12: Current Topics in Nutrition

  • Page ID
    21566
    • 12.1: The Politics of Food
      Food politics reflect changing perspectives and policies in the areas of production, distribution, marketing, regulation, and consumption. Over the years, there have been a number of controversies and disputes over food, including concerns about additives and GM foods, the push for sustainable agriculture, and the need to alleviate hunger. In the United States, a massive piece of legislation known as the Farm Bill determines the agricultural and food policy of the federal government.
    • 12.2: The Issue of Food Security
      Nearly one billion people suffer the effects of constant hunger. There are two types of malnutrition. The first is macronutrient deficiency and relates to the lack of adequate protein, which is required for cell growth, maintenance, and repair. The second type of malnutrition is micronutrient deficiency and relates to inadequate vitamin and mineral intake.
    • 12.3: Foodborne Illness and Food Safety
      Foodborne illness is caused by pathogens, such as bacteria and viruses, toxins, such as those produced by molds and poisonous mushrooms, and chemical contaminants, such as pesticide residues and pollutants. A number of government agencies work to regulate food, manage outbreaks, and inform the public about foodborne illness and food safety. Consumers also should take measures to protect their health, including following the rules for four key steps: clean, separate, cook, and chill.
    • 12.4: Diet Trends and Health
      Attitudes toward food change over time, so it is important to ground dietary choices in fact, not fashion. Popular, evidence-based diets, such as the Mediterranean diet, the DASH diet, vegetarianism, and the gluten-free diet offer different approaches to promoting health, and each has its own benefits and risks. It is important to weigh the pros and cons of dietary supplementation. There are risks of overdosing and risks of contraindications with certain medications.
    • 12.5: Sustainability
      Some consumers are choosing to make smarter nutritional choices, eat healthier foods, and enjoy fresh, locally grown products. They read the labels on products in their local stores, make more home-cooked meals using whole-food ingredients, and pay attention to the decisions that legislators and other officials make regarding food production and consumption. Will you be one of them? How you can adjust your dietary selections to benefit not only your body and mind but also to help sustain the pla
    • 12.6: Start Your Sustainable Future Today
      Living a sustainable lifestyle can help you to work toward achieving optimal health. There are a number of steps you can take to promote sustainable practices, such as buying locally grown food, eating a plant-based diet, and becoming aware of food and nutrition issues in your community. The Transtheoretical Model of Behavioral Change outlines the different stages of the process of change, and provides tools and techniques to enable major changes.
    • 12.7: Threats to Health
      Chronic diseases such as cardiovascular disease, high blood pressure, cancer, and diabetes are major public health threats, and major causes of mortality. Knowing the modifiable risk factors (such as diet, level of physical activity, and cigarette smoking) for certain diseases can help you to adapt your lifestyle to protect them. By following a healthy diet, becoming active, and making other sound lifestyle choices, individuals can reduce their risk of developing chronic diseases.
    • 12.E: Exercises