What’s in a Fad Diet?

Food Faddism in America

According to the National Institutes of Health, 68 percent of the United States adult population is overweight or obese.

In an effort to combat obesity and maintain a balanced, healthy diet, An estimated 45 million Americans – 14 percent of the population – diet each year.

Americans spend $33 billion annually on weight loss products.

As more and more Americans look for ways to improve their health by changing their eating habits, they turn to established and popular diet plans – also known as “fad diets.” Not all fad diets are the same; in fact, fad diets can be drastically different – from how they are followed to the effects they have on the body.

Popular Fad Diets

Low-carbohydrate diet

Carbohydrates are broken down into glucose to energize cells, tissues, and organs. The body stores excess glucose and converts it into fat. This diet reduces daily carbohydrate intake by nearly 75 percent in order to burn stored fat for energy.

Allow

  • Meat
  • Poultry
  • Fish
  • Eggs
  • Nonstarchy vegetables

Limit

  • Grains
  • Legumes
  • Fruits
  • Breads
  • Sweets
  • Pasta
  • Starchy vegetables

Low-fat/vegetarian diet

Common types of vegetarian diets exclude meat, poultry, and seafood, while making an allowance for dairy products and eggs. Exceptions include a plant-based flexitarian diet that makes occasional allowances for meat.

Allow

  • Fruits
  • Vegetables
  • Nuts and seeds
  • Dairy products
  • Grains
  • Eggs (sometimes)

Limit

  • Meat
  • Fish
  • Poultry

Low-glycemic diet

The glycemic index (GI) measures how foods containing carbohydrates raise glucose levels in the blood with high, medium, and low ratings. This diet is based on eating a balanced diet composed of foods with medium or low GI ratings.

Skim Milk

Allow

  • Fruits
  • Vegetables
  • Whole grains
  • Legumes
  • Low-fat dairy products

Limit

  • High-fat dairy products
  • Processed snacks
  • Baked goods
  • High-fat animal proteins

Mediterranean diet

Based on Mediterranean-style cooking, this diet emphasizes an eating plan that helps promote a healthy lifestyle. It has been proven to reduce the risk of heart disease, cancer, and incidences of Parkinson’s and Alzheimer’s diseases.

Allow

  • Fruits
  • Vegetables
  • Whole grains
  • Legumes
  • Nuts
  • Olive oil
  • Wine
  • Fish

Limit

  • Red meat
  • Butter
  • Salt
  • Sweets

Gluten-free diet

Primarily used to treat celiac disease, this diet has risen in popularity over the last few years. When following the gluten-free diet, all foods containing gluten must be avoided.

Allow

  • Beans
  • Seeds
  • Nuts
  • Eggs
  • Fish
  • Poultry
  • Fruits
  • Vegetables
  • Dairy products

Limit

  • Barley
  • Rye
  • Triticale
  • Wheat

Paleolithic diet

This diet, also known as the paleo diet, is based on foods that might have been eaten between 2.5 million and 10,000 years ago during the Paleolithic era. Followers of this diet believe that the human body adapts better to this original way of eating.

Allow

  • Fruits
  • Vegetables
  • Nuts and seeds
  • Lean meats
  • Fish
  • Olive oil

Limit

  • Grains
  • Legumes
  • Dairy products
  • Refined sugar
  • Salt
  • Potatoes
  • Processed foods

Raw foods diet

This diet consists of food that hasn’t been cooked, processed, microwaved, irradiated, genetically engineered, or exposed to pesticides or herbicides. Raw food dieters typically cite weight loss and an overall improvement in health as their reasoning for choosing the diet.

Allow

  • Fruits
  • Vegetables
  • Sprouts
  • Nuts and seeds
  • Grain
  • Raw legumes
  • Cold-pressed olive oil
  • Freshly squeezed juice

Limit

  • Pasteurized and processed foods
  • Refined sugars and flours
  • Table salt
  • Caffeine

Sources

http://www.nhlbi.nih.gov/files/docs/guidelines/ob_gdlns.pdf
http://www.bmc.org/nutritionweight/services/weightmanagement.htm
http://www.annualreviews.org/doi/full/10.1146/annurev-publhealth-032013-182351
http://www.mayoclinic.org/healthy-living/weight-loss/in-depth/low-carb-diet/art-20045831
http://www.diabetes.org/food-and-fitness/food/what-can-i-eat/understanding-carbohydrates/glycemic-index-and-diabetes.html
http://www.mayoclinic.org/healthy-living/nutrition-and-healthy-eating/in-depth/vegetarian-diet/art-20046446
http://www.mayoclinic.org/diseases-conditions/diabetes/in-depth/diabetes-diet/art-20044295
http://www.mayoclinic.org/healthy-living/nutrition-and-healthy-eating/in-depth/mediterranean-diet/art-20047801
http://www.mayoclinic.org/healthy-living/nutrition-and-healthy-eating/in-depth/gluten-free-diet/art-20048530
http://www.mayoclinic.org/healthy-living/nutrition-and-healthy-eating/in-depth/paleo-diet/art-20111182
http://health.usnews.com/best-diet/raw-food-diet

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