Hand measures as a visual guide for portion size estimation: a)

Estimating Portion Sizes With Your Hand: How Much is Enough?

Handy guide to portion sizes: Never know how much food is too much? Use our formula to figure out the right amount to eat

How To Get Started with Hand Portion Sizes

Food portions - Heart Matters magazine - BHF

9 Tips to Measure and Control Portion Sizes

Accuracy of hands v. household measures as portion size estimation aids, Journal of Nutritional Science

Hand Portion FAQ: A Guide from Precision Nutrition

PDF) A Systematic Review of Sensor-Based Methodologies for Food Portion Size Estimation

Visual Guide to Healthy Portions

Healthy Portions: Your hand size can tell you how much to eat

Edward SAZONOV, Professor, Ph.D., University of Alabama, Alabama, UA, Department of Electrical and Computer Engineering

How to Use Your Hand to Measure Portion Sizes