Diet & Circadian Rhythm

by Trace on April 16, 2010

ClockGrassOur body follows a daily cycle known as our circadian rhythms. Circadian refers to the regular recurrence of cycles of activity that occur every twenty four hours. When you eat in tune with these naturally occurring rhythms you will notice an enourmous increase in your overall health, energy, and well being.

Researchers have found eating more fat can actually affect the body’s circadian rhythm, suggesting a “complex interplay” between the internal clock and metabolism. Previously, studies have found a disrupted circadian rhythm causes people to crave high fat food, and children who lack sleep have an increased risk of being overweight.


Disruption of circadian rhythms leads to obesity and metabolic disorders.

A Northwestern University and Evanston Northwestern Healthcare (ENH) study has shown that overeating alters the core mechanism of the body clock, throwing off the timing of internal signals, including appetite control, critical for SleepingMangood health. Animals on a high-fat diet gained weight and suddenly exhibited a disruption in their circadian clocks, eating extra calories during the time they should have been asleep or at rest.

Two years ago Bass and his colleagues reported in the journal Science that a faulty or misaligned body clock can wreak havoc on the body and its metabolism, increasing the propensity for obesity and diabetes.

The biological clock is central to behaviour and tissue physiology. Clocks function in the brain as well as lung, liver, heart and skeletal muscles. They operate on a 24-hour, circadian (Latin for “about a day”) cycle that governs functions like sleeping and waking, rest and activity, fluid balance, body temperature, cardiac output, oxygen consumption and endocrine gland secretion.

For animals on a high-fat diet, after two weeks on that diet the animals’ behavior changed: their daily period of sleep/wake was lengthened by a significant amount.

CoffeeBlackIn a Japanese study results clearly show that drinking coffee alters circadian clocks. These results may suggest that night-time coffee disturbs sleep or waking.  It is also suggested that coffee intake is essentially helpful to improve jet lag and also efficiency of night-time working.

For more information on how diet and food influences our moods and health…visit

How To Overcome Stress Naturally by Tracey Stranger with Foreword by HH The Dalai Lama

Ch 4: Nutrition Healing: Vitamins Mineral, Fatty Acids & Mental Health: Blake Graham (Clinical Nutritionist)

Ch 5: Change Your Food to Change Your Mood: Julie Wood (Registerd Nurse, Aromatherapist, Nutrition Medicine)


Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages.
  • MisterWong
  • Y!GG
  • Webnews
  • Digg
  • StumbleUpon
  • Reddit

Leave a Comment

Previous post:

Next post: