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Importance of food and diet, Study notes of Food Science and Technology

importance of food and diet in food science in university course.

Typology: Study notes

2023/2024

Available from 09/05/2024

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IMPORTANCE OF FOOD AND DIET
Macro: Complex carbohydrates, such as those found in
whole grains, take longer to break down, providing a
steady release of energy and helping to maintain stable
blood sugar levels. Simple carbohydrates Carbohydrates,
on the other hand, are quickly digested, often leading to
quick energy spikes followed by crashes nutrients
.Proteins: Proteins are not only essential for muscle repair but also play a
crucial role in the production of enzymes and hormones, which regulate
various bodily functions. Consuming a variety of protein sources ensures you
get a full spectrum of essential amino acids.
Examples for proteins:
Fats ; Healthy fats, such as those found in avocados and olive oil, are
important for brain function and hormone production. Despite their higher
calorie content, unsaturated fats can help reduce bad cholesterol levels and
lower the risk of heart disease.
Examples for fats:
2. Micronutrients:
Vitamins: Each vitamin has specific roles; for example, Vitamin A
supports vision and immune function, while Vitamin E acts as an
antioxidant, protecting cells from damage. A deficiency in any vitamin
can lead to health issues, highlighting the importance of a varied diet.
Example for Vitamins: Vitamin A, Vitamin B, Vitamin C, Vitamin D,
Vitamin E.
Minerals: Minerals like magnesium and zinc are involved in hundreds
of biochemical reactions in the body, influencing everything from
energy production to immune function. It's important to get enough
minerals through diet, as they are not produced by the body.
Example for minerals:
3. Dietary Guidelines:
Balanced Diet: A balanced diet provides the right proportions of
macronutrients and micronutrients necessary for maintaining energy
levels, supporting bodily functions, and preventing nutrient deficiencies.
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Macro: Complex carbohydrates, such as those found in whole grains, take longer to break down, providing a steady release of energy and helping to maintain stable blood sugar levels. Simple carbohydrates Carbohydrates, on the other hand, are quickly digested, often leading to quick energy spikes followed by crashes nutrients

. Proteins: Proteins are not only essential for muscle repair but also play a crucial role in the production of enzymes and hormones, which regulate various bodily functions. Consuming a variety of protein sources ensures you get a full spectrum of essential amino acids. Examples for proteins: Fats ; Healthy fats, such as those found in avocados and olive oil, are important for brain function and hormone production. Despite their higher calorie content, unsaturated fats can help reduce bad cholesterol levels and lower the risk of heart disease. Examples for fats:

  1. Micronutrients:  Vitamins: Each vitamin has specific roles; for example, Vitamin A supports vision and immune function, while Vitamin E acts as an antioxidant, protecting cells from damage. A deficiency in any vitamin can lead to health issues, highlighting the importance of a varied diet.  Example for Vitamins: Vitamin A, Vitamin B, Vitamin C, Vitamin D, Vitamin E.  Minerals: Minerals like magnesium and zinc are involved in hundreds of biochemical reactions in the body, influencing everything from energy production to immune function. It's important to get enough minerals through diet, as they are not produced by the body.  Example for minerals:
  2. Dietary Guidelines: Balanced Diet: A balanced diet provides the right proportions of macronutrients and micronutrients necessary for maintaining energy levels, supporting bodily functions, and preventing nutrient deficiencies.

Following dietary guidelines can reduce the risk of chronic diseases like heart disease, diabetes, and obesity.  Food Groups: Including all food groups in your diet ensures that you receive a variety of nutrients, each contributing to different aspects of health. For example, fruits and vegetables are rich in antioxidants, while proteins provide essential amino acids for muscle repair.

  1. Special Diets:  Vegetarian/Vegan: These diets often require careful planning to avoid nutrient deficiencies, particularly in vitamin B12, iron, and omega- fatty acids, which are predominantly found in animal products. Supplementation or fortified foods may be necessary to meet dietary needs.  Gluten-Free: A gluten-free diet is essential for individuals with celiac disease to avoid damage to the small intestine and other complications. However, for those without gluten sensitivity, there's no proven benefit to avoiding gluten, and gluten-free products can sometimes be less nutritious.
  2. Healthy Eating Habits:  Hydration: Water is vital for maintaining body temperature, lubricating joints, and flushing out toxins. Even mild dehydration can affect physical performance, mood, and concentration, making regular water intake essential.  Mindful Eating: Mindful eating helps you listen to your body's hunger and fullness cues, reducing the likelihood of overeating and promoting a healthier relationship with food. It also enhances the enjoyment of meals, making food a more satisfying experience.
  3. Food Labels:  Understanding Labels: Food labels help consumers make informed choices about the nutritional content of their food, including the amount of added sugars, sodium, and unhealthy fats. By reading labels, you can choose products that align with your health goals and dietary needs.  Ingredients List: Ingredients are listed in descending order by weight, so the first few ingredients are the most significant in terms of content.

societal trends, encouraging more sustainable food production practices.

  1. Food Allergies and Intolerances:  Food Allergies: Allergies can cause severe reactions, such as anaphylaxis, and require strict avoidance of the allergen. It's important for individuals with food allergies to read labels carefully and be aware of potential cross-contamination in food preparation.  Food Intolerances: Intolerances, like lactose intolerance, often cause digestive discomfort rather than severe immune reactions. Managing intolerances typically involves avoiding or limiting the problematic food, sometimes with the help of digestive aids like lactase enzymes. 4o