This study examined the beneficial effects of green tea on BMI and WHR in healthy volunteers over 3 months. Twenty volunteers with a BMI over 23 were given 200ml of green tea daily. Measurements of weight, BMI, abdominal girth, and waist-hip ratio were taken at baseline and months 1, 2, and 3. There was a significant reduction in both weight and BMI observed in the 13 volunteers who drank green tea regularly. However, reductions in abdominal girth and WHR were insignificant. The study concluded that green tea consumption for 3 months can significantly reduce weight and BMI in healthy individuals.

1. Beneficial effect of green tea in
volunteers with B.M.I > 23 kg/m2
Presented by:Shani
Group members,
Shibil,Sumayyul,Swetha,Thahseen,Tijin,Vidhu,Vishnu,
Bipin,Asif,Javad,Nadeem.

2. Green tea
GREEN TEA- Camelia sinesis - minimal oxidation
during processing

3. • BMI and WHR
• BMI or body mass index is the measure of body
fat in relation to your weight.
• BMI = Body wt in kg/ Height in m2
• Normal Range 18.5-24.9 kg/m2
• WHR or Waist Hip Ratio is the ratio of
circumference of waist to that of hip.
• Male 0.95 Female 0.82

4. Green tea
• ADVANTAGES –
Improve health,brain function.
Increase fat burning &
improve physical
perfomance.
Contains antioxidants.
Used for Crohn’s
disease,Parkinsonism.
diseases of heart &blood
vessels,diabetes,low blood
pressure.
As candy is used for gum
diseases.
as ointment for genital warts.
• DISADVANTAGES
-
• The side effects of green
tea is due to the presence
of caffine.

5. Objective
• To study the beneficial effect of green tea on BMI
& WHR in healthy volunteers.

6. Method
• 2013 regular students were divided into 5 groups.
• This was a prospective study involving 20
volunteers of age group 20-23 for a period of 3
months.
• Inclusion criteria: BMI >23 both male and female
• Exclusion criteria: BMI<23
• Informed consent was taken.
Before starting the project clearance obtained from
IEC.
• Basic parameters like weight,BMI,abdominal
girth and waist and hip circumference were taken.

8. Method
• 200 ml of freshly prepared green tea (Lipton lemon &
honey) in hot water added with 5 g sugar was given
everyday for 3 months at stipulated time.
• Regular register was kept where volunteers used to sign
after having green tea and during holidays sachets were
given to take it home.
• Measurements were repeated at the end of 1,2 and 3rd
months.
• Initially 20 volunteers were selected but only 13 were only
regular and were selected.
• At the end of project data was analysed statistically using
t test.

9. Method
• Informed consent- based on principle that
competent individuals are entitled to choose freely
whether to participate in research or not.
• It protects the individuals freedom of choice and
respects individuals autonomy.

11. Method
• Students “t-test” :-
• Introduced by William Sealy Gosset.
Students ‘t’test
Unpaired ‘t’ test
(Compare mean of
two independent
sample)
Paired ‘t’test
(Compare mean of
two dependent
sample)

12. Results
Comparison of weight on day0 and week4.
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
WEIGHT
Day0
Week 4

13. Comparison of weight on day0 and week8
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
WEIGHT
Day0
Week 8

14. Comparison of weight on day0 and week12
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
WEIGHT
Day0
Week 12

15. Comparison of weight on week8 and week12.
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
WEIGHT
Week 8
Week 12

16. Comparison of BMI on day0 and week4.
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35 BMI
Day0
Week 4

17. Comparison of BMI on day0 and week8.
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35
BMI
Day0
Week 8

18. Comparison of BMI on day0 and week12.
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35
BMI
Day0
Week 12

19. Comparison of BMI on week8 and week12.
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
32.5
35
BMI
Week 8
Week 12

20. Unsignificant reductions
97.5
98
98.5
99
99.5
100
100.5
101
101.5
102
102.5
1 2 3 4
HIP
Series1
91
91.5
92
92.5
93
93.5
1 2 3 4
ABDOMINAL GIRTH
Series1
0.915
0.92
0.925
0.93
0.935
0.94
1 2 3 4
WHR
Series1

21. 0 to4 0 to 8 0 to 12 4 to 8 8 to 12
SD 1.1186645 1.089754148 1.271885 1.027257 1.31051
SE 0.31026171 0.30224342 0.352758 0.28491 0.36347
P 0.000065052 0.000000514337 0.000446 0.001854 0.003288
Weight
BMI
0 to 4 0 to 8 0 to 12 4 to 8 8 to 12
SD 0.381304772 0.36031115 0.514948593 0.381495 0.464026
SE 0.105754916 0.09993233 0.142821043 0.105808 0.128698
P 0.0000351945 0.0000001580
4
0.000716002 0.0017 0.003242

23. Discussion
Significant reduction in weight as well as BMI was
observed in volunteers taking green tea even
though there was no change in regular diet.
Unsignificant reduction in abdomen girth and
WHR.

24. Conclusion
• It was observed that there has been significant
reduction in weight and BMI in all the 13 healthy
volunteers who took greentea for 3 months.
• Experiment on green tea has yielded a good
outcome and the result would have further
enhanced if we continued the project.

26. Acknowledgement
• I would like to thank almighty for having helped
us to complete the project on time.I would like to
thank Department of pharmacology for
introducing us to this project .Our mentor Dr
Regina Roy , MD has been one of the greatest
pillars for the perfect completion . I would like to
express my special gratitude to my group
members without whose support and cooperation
this project wouldn’t have been successful.

28. Bibliography
• KD TRIPATHY’S ESSENTIALS OF
MEDICAL PHARMACOLOGY.
• 7TH Edition : Jaypee, New Delhi, 2010.
• K.K SHARMA’S PRINCIPLE OF
PHARMACOLOGY.