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
flagSwitzerland
80%
9%
7%
3%
66
flagUkraine
69%
21%
5%
5%
100
flagSweden
66%
18%
6%
8%
59
flagthe Netherlands
64%
20%
8%
6%
126
flagItaly
62%
13%
12%
10%
58
flagRussia
62%
25%
8%
4%
48
flagAustria
61%
22%
7%
9%
54
flagthe United Kingdom
60%
16%
10%
11%
868
flagPoland
59%
21%
9%
8%
30978
flagPakistan
58%
16%
13%
11%
68
flagNorway
57%
18%
8%
13%
59
flagGermany
56%
22%
9%
11%
360
flagRepublic of Ireland
55%
21%
10%
11%
134
flagIndia
53%
25%
10%
11%
509
flagFrance
53%
23%
14%
8%
69
flagthe United States
48%
22%
13%
13%
1264
flagCanada
45%
27%
16%
9%
112
flagAustralia
45%
16%
26%
11%
84
flagthe Philippines
42%
27%
11%
17%
76
flagUnknown
41%
32%
12%
13%
1526

Gender

men53%
women59%
a sugar
53%
59%
a lactic acid
25%
21%
a protein
11%
11%
a process of milk fermentation
10%
8%

Details

Author: Kasia
Illustration: Steven Depolo
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