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
88%
5%
2%
2%
34
flagUkraine
67%
21%
3%
7%
28
flagItaly
65%
13%
11%
9%
44
flagMalaysia
65%
20%
8%
5%
35
flagNorway
63%
15%
4%
15%
44
flagSpain
60%
14%
21%
0%
28
flagPoland
59%
21%
9%
9%
19138
flagAustria
57%
23%
11%
7%
26
flagthe United Kingdom
55%
18%
12%
12%
593
flagIndia
54%
24%
11%
9%
362
flagPakistan
54%
17%
17%
11%
35
flagRepublic of Ireland
53%
21%
14%
9%
83
flagGermany
51%
24%
10%
13%
253
flagthe Netherlands
50%
28%
15%
5%
59
flagFrance
50%
27%
14%
7%
55
flagAustralia
49%
15%
23%
12%
65
flagthe United States
48%
22%
14%
13%
940
flagUnknown
47%
26%
14%
11%
97
flagCanada
46%
25%
15%
10%
94
flagthe Philippines
40%
32%
10%
14%
49

Gender

men57%
women57%
a sugar
57%
57%
a lactic acid
21%
21%
a protein
11%
11%
a process of milk fermentation
9%
8%

Details

Author: Kasia
Illustration: Steven Depolo
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