Math

1
Math Dieting
By Caroline Crawford, Loni Benfield, and Leah
Buell
2
How Math Dieting Converge

• Calculations of calories, fats,
• proteins, and other nutrients.

• Math Dieting
• Accuracy
• Safety
• Control

3
Well look at

• Weight Watchers
• Slim Fast Liquid Diets
• The Da Vinci Diet

4
Weight Watchers Diet
5
What is it?

• Most popular and one of the oldest group weight
  loss programs.
• Operates on calorie-reduction plan
  points system.
• Eat whatever is in point system.

6
Just where do these Points Come From?

• The formula for calculating points is patented,
  but here is a variation

1 point (calories per serving/50) (fat
grams/12) (min r, 4/5)

• The last part of the calculation means grams of
  dietary fiber or 4, whichever is less.

7
So Basically

• The formula means this
• For every 12 grams of fat,
• the points per serving
• increases by 1.
• Points drop by 1 for
• every 5 grams of dietary fiber.

8
Using the Points Formula
In a powdered Dunkin Donut, there are 270
calories 15 grams of fat 32 grams of
carbohydrates http//www.calorie-count.com/calori
es/item/53268.html
(270/50) (15/12) (0/5) 6.65 points
9
I exercise, why is caloric intake important?

• To maintain a current weight without regard for
  caloric intake, a person needs to burn 5 ½
  calories per pound, per day!

10

• 170 lb person needs to burn 925-950 calories
  per day!
• The equivalent of walking 9-10 miles!

11
The Downfalls of Weight Watchers

• Does NOT consider the AMOUNT OF
  PROTEIN INTAKE.

• 1 lb of muscle yields 600 calories.
• 1 lb of fat yields 3500 calories.
• 100 fat loss is 1 lb.
• 100 muscle loss is 6 lbs.

12
Slim Fast and Liquid Diets
13
How do they work?

• LOW calorie intake of 400 - 800 calories
• a day.

• At least one
• high-protein meal replacement shake.

• http//www.slim-fast.com/shared/images/plan/plan-
  replacements-update.gif
• Body directly burns the already digested fat!

14
How Effective are they?

• PROS
• Rapid weight loss of approximately
• 3-4 pounds a week.

• CONS
• Very difficult to keep off weight for an
  extended period of time.
• For every 100 people who lose weight,
• 95 will gain it back!

The main reason these diets are effective is
because of their complete removal of patients
from the food environment.
15
Health Risks

• over use lean muscle
• slow the metabolism
• muscle cramps
• anemia
• dizziness
• menstrual abnormality
• constipation

• cardiac dysfunctions
• electrolyte imbalance
• irregular heart beats
• 25 develop gallstones

• During the 1970s,
• 58 deaths
• were linked to inadequate nutrition and too
  little calories in liquid diets!

16
Average Slim Fast Bar

• Calories referred to as energy
• Significant amount of saturated fat
• Large amount of carbohydrates
• Large amounts of sugars
• ? Not a significant source of protein
• The RDA recommends that the average person must
  have .36 grams of protein per pound you weigh.

17
The Da Vinci Diet
18
So what is it?

• Created by baker, Stephen Lanzalotto.

• Fan of Da Vinci with background in biology and
  chemistry.
• Healthy alternative to Atkins Diet.
• Mediterranean inspired.
• Consists of fish, cheese, vegetables, meat, nuts,
  wine, and bread.

19
How does it work?

• Breaks down to
• 52 percent carbs
• 20 percent protein
• 28 percent fat
• Based on a COMPLICATED formula (they wont
  release for free) that relies on the value of phi
  (1.618), known as the "golden ratio."

20
The Golden Ratio

• Pythagoras
• How can a line segment be divided into two
  pieces that have the most appeal and balance?

21

• Golden Ratio
• Length of the longer piece
• vs.
• the length of the shorter piece
• is same as
• the ratio of the length of the entire line
  segment
• vs.
• length of the long piece
• to be
• most aesthetically pleasing!
• L/1 (L 1) / L

22

• Ratio 1.618

23

• Math is used in dieting in a variety of ways,
  from calculating calories and points, to
  comparing the body image with ratios used in
  math.
• We can see, math can be a useful tool in keeping
  track of change!

24
Images

• Slide 1 Food and Math Illustration,
  http//www.buyteachercreated.com/estore/product/BT
  C2323/display_large_product_graphic?SUPPLIER_IDBT
  CPRODUCT_GRAPHIC2323
• Slide 2 Garfield, http//images.google.com/imgres
  ?imgurlhttp//i2.photobucket.com/albums/y20/FatBe
  GoneStacy/garfield.jpgimgrefurlhttp//journals.a
  ol.com/fatbegonestacy/MyLifeChangeandWeightLossJou
  rney/entries/792h237w330sz22hlenstart64
  tbnidOciMVdA6j17p-Mtbnh81tbnw114prev/image
  s3Fq3Dweight2Bwatchers2Bpoints26start3D6026
  dnum3D2026svnum3D1026hl3Den26lr3D26sa3DN
• Slide 3 Scales, http//www.purdue.edu/hr/images/w
  eightmanagement.jpg
• Slide 6 Confused guy, http//www.epa.gov/sab/sge_
  course/images_sge/confused.jpg
• Slide 8 Donut, http//www.e-kain.com/images/gif/d
  unkin.gifimgrefurlhttp//www.e-kain.com/angeles/
  donut.htmlh67w160sz5hlenstart12tbnid
  xp7jUI8u47tKWMtbnh38tbnw92prev/images3Fq3
  Ddunkin25272Bdonut2Bbox26svnum3D1026hl3Den
  26lr3D26sa3DG
• Slide 9 Cartoon courtesy of artists at
  http//www.cartoonstock.com/newscartoons/cartoonis
  ts/mba/lowres/mban804l.jpg
• Slide 10 Hiking, http//www.mitchellraces.com/ima
  ges/springmaidsplash/walking.jpg
• Slide 13 Slim Fast Chart, http//www.slim-fast.co
  m/shared/images/plan/plan-replacements-update.gif
• Slide 17 Mediterranean Food Pyramid, courtesy of
  http//www.high-fiber-health.com/images/PYRAMID3.g
  if
• Slide 18 Italy of food, http//www.frescaitalia.c
  om/images/italy_map.jpg
• Slides 21 22 Golden Ratio, http//images.google
  .com/imgres?imgurlhttp//jwilson.coe.uga.edu/EMAT
  6680/Parveen/Greek252014.jpgimgrefurlhttp//jwi
  lson.coe.uga.edu/EMAT6680/Parveen/Greek_History.ht
  mh336w319sz14hlenstart7tbniduPN5-g_UD6
  HCfMtbnh115tbnw109prev/images3Fq3Dpythago
  ras2B252B2Bgolden2Bratio26svnum3D1026hl3De
  n26lr3D26sa3DG
• Slide 23 Fat Cross-dresser, http//www.indcjourna
  l.com/archives/fat-thumb2.jpg

25
References

• About.com. Da Vinci Diet Answer to the Diet
  Dilemma? 2004. http//portlandme.about.com/od/heal
  thcare/a/DaVinciDiet.htm
• Calorie-Count. 2006. Calorie-Count.com.
  http//www.calorie-count.com/calories/item/53268.h
  tml
• "CBS News." A Look at Weight Watchers. 06 Jan
  2003. CBS News. http//www.cbsnews.com/stories/200
  3/01/03/earlyshow/series/weightoff/main535245.shtm
  l.
• CBS News. Da Vinci Diet Digs Carbs. 15 June
  2004. CBS News. http//www.cbsnews.com/stories/200
  4/06/15/health/main623260.shtml
• Hemphill, Elizabeth. Liquid Diets Safe and
  Effective?. Vanderbilt University- Psychology
  Department. 15 April 2006. http//www.vanderbilt.
  edu/AnS/psychology/health_psychology/LiquidDiets.h
  tm .
• Finn, Christian. The Facts about Fitness. 2006.
  The secret weight watchers points formula
  exposed. http//www.thefactsaboutfitness.com/resea
  rch/diet.htm.
• "Slim-Fast Optima Shakes." Slim-Fast. 15 April
  2006. http//www.slim-fast.com/products/product_in
  fo.asp?product_id695 .
• Weight Watchers. 2006. Weight Watchers
  Incorporated. http//www.weightwatchers.com/index.
  aspx.
• See Images also.