ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

10 Fibro-Friendly Foods with a Bonus: Beautiful Skin

Fight Back! Win the War Being Waged Against Your Immune System

Studies Show that Magnesium L-threonate Improves Brain Plasticity, Leading to Direct and Significant...

The role of microbiota and intestinal permeability in the pathophysiology of autoimmune and neuroimm...

Clary Sage Oil May Be Pricey, but Its Benefits Are Priceless

Component of red wine, grapes can help to reduce inflammation, study finds

Poly MVA: A Novel Therapy for Increasing Energy, Repairing DNA, and Promoting Overall Health

Pumpkin Pie Turmeric Breakfast Smoothie - Vegan + Gluten-Free

Vitamin D supplementation extends life in mouse model of Huntington's disease

What’s Fenugreek Good For?

Print Page
Email Article

Portion Size Matters: Given Too Much, We Eat It

  [ 27 votes ]   [ Discuss This Article ] • March 17, 2003

Almost no one can stop eating at just a single normal serving if there's extra food on their plate, Penn State researchers have shown, and this tendency coupled with the spread of megaportions may be contributing to the American obesity epidemic.

In the first systematic, controlled study of the response to portion size in adults, the researchers found that the bigger the portion, the more the participants ate. On average, they ate 30 percent more from a five-cup portion of macaroni and cheese than from one half its size – without reporting feeling any fuller after eating. Dr. Barbara Rolls, who holds the Guthrie Chair of Nutrition in Penn State's College of Health and Human Development, led the study. She says, "Men and women, normal-weight and overweight individuals, restrained and unrestrained eaters, all responded to larger portion size by eating more."

The response to larger portions was not influenced by who determined the amount of food on the plate, the study participant or the researchers.

The study is detailed in a paper, "Portion Size of Food Affects Energy Intake in Normal-weight and Overweight Men and Women," in the current (December) issue of the American Journal of Clinical Nutrition. Rolls's co-authors are Erin L. Morris, Penn State master's degree recipient in nutrition, and Liane S. Roe, research nutritionist.

In the study, 51 normal-weight and overweight men and women, 21 to 30 years of age, had lunch one day a week for four weeks in Penn State's Laboratory for the Study of Human Ingestive Behavior. The lunch included water, carrot sticks and a snack-size chocolate bar as well as macaroni and cheese made in the "light" version from a well-known commercial mix.

Each week, the participants were served the macaroni and cheese in one of four portions ranging from two and a half to five cups. The participants were required to eat all of the carrots and chocolate bar but could eat as little or as much of the macaroni and cheese as they wanted.

One group received the different amounts of macaroni and cheese pre-portioned on a dinner plate from which they ate. Another group received the different portions in a serving dish and could scoop as much of the entrée as they liked onto their plates. In both cases, the participants ate more when more food was available but didn't report feeling any fuller after eating.

Rolls says, "Our research shows that pretty much everyone is susceptible to the influence of portion size. However, it's not increased portion size alone that is contributing to the American obesity epidemic but rather eating large portions of high-calorie, high-fat foods.

"Large portions of foods low in calories and fat such as vegetables, fruits and broth-based soups can aid weight management by providing satisfying portions with few calories," she adds.

Post a Comment

Featured Products From the ProHealth Store
Energy NADH™ 12.5mg Mitochondria Ignite™ with NT Factor® Optimized Curcumin Longvida®

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products

Article Comments

Be the first to comment on this article!

Post a Comment

Natural Pain Relief Supplements

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium

Natural Remedies

Stop Bacteria With Nature's Antibiotics Stop Bacteria With Nature's Antibiotics
Sunshine Vitamin Has D-lightful Health Benefits Sunshine Vitamin Has D-lightful Health Benefits
Coconut Oil - Healthy Gifts from the 'Tree of Life' Coconut Oil - Healthy Gifts from the 'Tree of Life'
More Weight Loss than Any Other Discovery in Supplement History More Weight Loss than Any Other Discovery in Supplement History
Enhance Eyelashes Naturally Enhance Eyelashes Naturally

ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
Credit Card Processing
Be the first to know about new products, special discounts and the latest health news. *New subscribers only

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map