references
  
      Physiological Reports: "Composition of Two‐Week Change in Body Weight Under Unrestricted Free‐Living Conditions"
    
      Academy of Nutrition and Dietetics: "How Much Water Do You Need?"
    
      Nutrition Reviews: "Fundamentals of Glycogen Metabolism for Coaches and Athletes"
    
      Harvard Health Publishing: "Should You Weigh Yourself Every Day?"
    
      Critical Reviews in Environmental Science and Technology: "The Characterization of Feces and Urine: A Review of the Literature to Inform Advanced Treatment Technology"
    
      Merck Manual Consumer Edition: "About Body Water"
    
      Nutrients: "The Role of Water Homeostasis in Muscle Function and Frailty: A Review"
    
      Physiology Education: "Insensible Water Loss During Sleep: A Theoretical Exercise"
    
      Harvard Health Publishing: "Edema"
    
      Mayo Clinic: "Edema"
    
      Academy of Nutrition and Dietetics: "Training for a Marathon? Tips to Keep You Going"
    
      Mayo Clinic: "Atkins Diet: What's Behind the Claims?"
    
      Baylor College of Medicine: "Muscle doesn’t weigh more than fat"
    
      Mayo Clinic: "Strength training: Get stronger, leaner, healthier"
    
      Johns Hopkins Medicine: "Why Do I Weigh Less in the Morning?"
    
      U.S. National Library of Medicine: "Bowel Movements"
    
      Mayo Clinic: "Weight-loss basics"
    
      Cleveland Clinic: "I Just Started Exercising — Why Am I Gaining Weight?"
    
      Cleveland Clinic: "When Is the Best Time to Weigh Yourself?"
    




It's typical for a person's weight to change throughout the course of the day.

Image Credit: Jupiterimages/Polka Dot/Getty Images

Image Credit: Jupiterimages/Polka Dot/Getty Images

How to Tell if Weight Is Water Weight or Fat Weight

3 Ways Your Weight and Your Poop Are Connected

2 Reasons Why Weighing Yourself Daily Can Help You Lose Weight — and 2 Reasons It Might Not

      Physiological Reports: "Composition of Two‐Week Change in Body Weight Under Unrestricted Free‐Living Conditions"
    
      Academy of Nutrition and Dietetics: "How Much Water Do You Need?"
    
      Nutrition Reviews: "Fundamentals of Glycogen Metabolism for Coaches and Athletes"
    
      Harvard Health Publishing: "Should You Weigh Yourself Every Day?"
    
      Critical Reviews in Environmental Science and Technology: "The Characterization of Feces and Urine: A Review of the Literature to Inform Advanced Treatment Technology"
    
      Merck Manual Consumer Edition: "About Body Water"
    
      Nutrients: "The Role of Water Homeostasis in Muscle Function and Frailty: A Review"
    
      Physiology Education: "Insensible Water Loss During Sleep: A Theoretical Exercise"
    
      Harvard Health Publishing: "Edema"
    
      Mayo Clinic: "Edema"
    
      Academy of Nutrition and Dietetics: "Training for a Marathon? Tips to Keep You Going"
    
      Mayo Clinic: "Atkins Diet: What's Behind the Claims?"
    
      Baylor College of Medicine: "Muscle doesn’t weigh more than fat"
    
      Mayo Clinic: "Strength training: Get stronger, leaner, healthier"
    
      Johns Hopkins Medicine: "Why Do I Weigh Less in the Morning?"
    
      U.S. National Library of Medicine: "Bowel Movements"
    
      Mayo Clinic: "Weight-loss basics"
    
      Cleveland Clinic: "I Just Started Exercising — Why Am I Gaining Weight?"
    
      Cleveland Clinic: "When Is the Best Time to Weigh Yourself?"