Lactose intolerance is a frequent reason to avoid milk and dairy products. What is lactose?

a sugar
a lactic acid
a protein
a process of milk fermentation
Lactose is a dis­ac­cha­ride sugar that makes up around 2-8% of milk. Lactose in­tol­er­ance is not an allergy. It is the in­abil­i­ty to digest lactose due to in­suf­fi­cient levels of lactase, the enzyme that me­tab­o­lizes lactose into glucose and galac­tose.

Answers distribution

a sugar
a lactic acid
a protein
a process of milk fermentation
answers
flagFinland
87%
6%
3%
3%
33
flagUkraine
72%
16%
4%
8%
25
flagItaly
70%
14%
4%
9%
41
flagMalaysia
66%
21%
6%
6%
33
flagNorway
65%
16%
2%
16%
43
flagSpain
60%
14%
21%
0%
28
flagPoland
59%
21%
9%
9%
18331
flagthe United Kingdom
54%
18%
13%
12%
551
flagIndia
54%
25%
11%
8%
335
flagPakistan
54%
19%
16%
9%
31
flagAustria
54%
22%
13%
9%
22
flagRepublic of Ireland
53%
22%
13%
9%
81
flagUU
53%
25%
12%
8%
56
flagthe Netherlands
52%
26%
15%
5%
57
flagFrance
50%
25%
15%
9%
44
flagGermany
49%
25%
11%
13%
226
flagthe United States
48%
22%
14%
13%
919
flagAustralia
48%
16%
22%
12%
62
flagCanada
47%
25%
15%
10%
92
flagthe Philippines
41%
33%
10%
12%
48

Gender

men57%
women58%
a sugar
57%
58%
a lactic acid
21%
21%
a protein
11%
11%
a process of milk fermentation
8%
8%

Details

Author: Kasia
Illustration: Steven Depolo
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