3. • A fast does not chemically begin until the
carbohydrate stores in the body begin to be
used as an energy source
• The fast will continue as long as fat and
carbohydrate stores are used for energy, as
opposed to protein stores
• Once protein stores begin to be depleted for
energy (resulting in loss of muscle mass) a
person is technically starving
4. Fasting is an integral part of many of the
major religions including Islam, Judaism and
Christianity
Many are dubious as to whether the
physiological effects are beneficial
5. Fasting Ramadan is unique
metabolic model
Ramadan fasting is not a prolonged or continuous fasting, but consists of alternate
fasting and feasting periods (i.e.: intermittent feeding).
6. Ramadan fasting in
numbers
Ramadan duration is variable, since the Islamic calendar is a lunar one and
therefore the Islamic year contains 354 .
For this reason, the Ramadan month occurs 11 days earlier every year, and
may fall in any period of the year, making a full circle in a span of 33 years.
Therefore, mean fasting duration is usually 12-14 h, but depending on the
place and the year it can last also up to 18 h or even 22 h, in the extreme
latitudes.
First day of fasting on May 27 or 28
26. • The experiment was performed in the 1930s
by isolating one worm and putting it on a
cycle of fasting and feeding. The isolated
worm outlasted its relatives by 19
generations, while still maintaining its
youthful physiological traits. The worm was
able to survive on its own tissue for months.
Once the size of the worm began to
decrease, the scientists would resume
feeding it at which point it showed great
vigor and energy. "The life-span extension of
these worms was the equivalent of keeping a
man alive for 600 to 700 years."
27. Antiaging effects
Better attitude
Better resistance to
disease
Better sleep
Change of habits
Clearer planning
Clearer skin
Creativity
Diet changes
Drug detoxification
Improved senses
(vision, hearing, taste)
Inspiration
More clarity (mentally
and emotionally)
More energy
More relaxation
New ideas
Purification
Reduction of allergies
Rejuvenation
Rest for digestive organs
Revitalization
Right use of will
Spiritual awareness
Weight loss
28. • Emotionally, you will feel calmer, clearer
and happier.
• Fasters often report that depression lifts,
goals begin to feel more obtainable as
obstacles are put into proper focus.
• Doctors have reported patients
experiencing improved concentration,
less anxiety, sleeping better and waking
more refreshed.
29. • most medical experts agree that fasting is not a
healthy weight loss tool.
– quick fluid loss, not substantial weight loss
• Fasting slows your metabolic rate down so your diet
from before the fast is even more fattening after you
fast
• Fasting for weight loss carries other health risks as
well.
• More risky if you've got liver or kidney problems, any
kind of compromised immune system functioning, or
are on medication -- even Tylenol,"
30. Pregnant women.
People with wasting diseases or malnutrition.
Those with a history of cardiac arrhythmias.
People with hepatic or renal insufficiency.
Fuhrman, J., Sarter, B., Calabro, D.J., Alternative Therapies, 2001; 8(4):1-3.
31. • Food consumed during the pre-dawn and dusk
meals may lead to some unintended weight gain.
But if you approach the fast with discipline, it
can be an opportunity to lose weight and
become healthier
• Heartburn
• Poor control of diabetes
• Headache
• Dehydration
• Constipation
• Stress
• Weight control
33. • The body continues to lose water and salts
through breathing, perspiring and urinating
• If you don’t drink sufficiently before a fast
your risk of dehydration is increased. This
risk is higher in older people and in those
taking tablets such as diuretics.
• If you are unable to stand up due to
dizziness, or you are disoriented, you should
urgently drink regular, moderate quantities
of water – ideally with sugar and salt
46. Decreased time available for
eating
Decreased Gastric filling
Capacity
Nausea and Vomiting
Type of food in Ramadan:
Hyperkalemia
Hyperphosphatemia
53. A small body mass loss is a frequent, but not
universal, outcome of Ramadan. During the daylight
hours of Ramadan fasting, practising Muslims are
undoubtedly dehydrating, but it is not clear whether
they are chronically hypohydrated during the month
ofRamadan. No detrimental effects on health have
as yet been directly attributed to negative water
balance at the levels that maybe produced during
Ramadan.
54.
55.
56.
57.
58.
59. CKD Patients Who should not Fast:
?? GFR < 30
?? GFR < 15
CKD with other associated problems:
Liver Disease
Diabetes
CVD
Neurological Disease
What if the patient insisted to fast??