What can you do about your lifestyle to heal your skin? The graph below tries to answer this for acne by presenting the summarized results of 80 studies looking at how 26 systemic factors influence the occurence of acne lesions. Click on each factor for details, you can also sort each column.

Improvement

Factor
Evidence Quality
Aggravation | Improvement % Change
omega-3 (inflammatory acne)
A
50%
oral contraceptives
A
50%
gamma linolenic acid
B
32%
bmi < 18.5 male
D
28%
omega-3 (non inflammatory acne)
B
27%
smoking > 20 / day
C
25%
low glycemic load diet
B
24%
cleansing
A
21%
bmi < 18.5 female
D
18%
sun exposure
D
14%
probiotics supplementation
D
5%
soy consumption
D
5%
bmi > 25 female
B
3%

Worsening

Factor
Evidence Quality
Aggravation | Improvement % Change
dairy skim milk girls
B
-29%
food allergies
D
-25%
dairy skim milk boys
C
-25%
stress
C
-23%
dairy whole milk girls
C
-19%
dairy low fat milk girls
C
-19%
chocolate
B
-18%
dairy low fat milk boys
C
-15%
dairy whole milk boys
C
-10%
smoking moderate
C
-4%
bmi > 25 male
C
-4%
makeup use
C
-3%
sleep quality (poor)
C
-3%
Factor
Evidence Quality
Aggravation | Improvement % Change
oral contraceptives
A
50%
omega-3 (inflammatory acne)
A
50%
gamma linolenic acid
B
32%
bmi < 18.5 male
D
28%
omega-3 (non inflammatory acne)
B
27%
smoking > 20 / day
C
25%
low glycemic load diet
B
24%
cleansing
A
21%
bmi < 18.5 female
D
18%
sun exposure
D
14%
soy consumption
D
5%
probiotics supplementation
D
5%
bmi > 25 female
B
3%
makeup use
C
-3%
sleep quality (poor)
C
-3%
bmi > 25 male
C
-4%
smoking moderate
C
-4%
dairy whole milk boys
C
-10%
dairy low fat milk boys
C
-15%
chocolate
B
-18%
dairy whole milk girls
C
-19%
dairy low fat milk girls
C
-19%
stress
C
-23%
food allergies
D
-25%
dairy skim milk boys
C
-25%
dairy skim milk girls
B
-29%