Am I Lactose Intolerant Quiz
Questions: 15 · 10 minutes
1. When you compare a small amount of milk with a much larger serving, how do your symptoms differ?
Neither amount usually causes relevant symptoms.
Symptoms seem similar regardless of the amount.
Symptoms are somewhat more likely after the larger serving.
Symptoms become clearly more likely or intense as the serving increases.
2. Across separate occasions when you consume lactose-rich foods, how consistent is the reaction?
I do not notice a recurring reaction.
A possible reaction has occurred once or only rarely.
A similar reaction occurs on many, but not all, occasions.
A similar reaction occurs nearly every time.
3. Soon after consuming milk or dairy, have you experienced signs that could suggest an allergic reaction rather than lactose intolerance?
I have not had an immediate skin, mouth, breathing, or faintness reaction.
I have experienced nausea alone, without immediate skin or breathing symptoms.
I have noticed prompt itching, a localized rash, or mouth tingling after dairy.
I have experienced hives, facial or throat swelling, wheezing, breathing difficulty, or faintness after dairy.
4. Which description best matches any changes you have noticed in your stool?
I have not noticed persistent loose stool, mucus, visible blood, or a black tar-like appearance.
I occasionally have loose stool that settles quickly and contains no blood.
Loose stool is persistent or repeatedly contains mucus, but I have not seen blood or a black tar-like appearance.
I have seen blood or a black tar-like appearance, even once.
5. If you have compared taking a lactase enzyme with not taking one before dairy, what best describes the result?
I have no relevant symptoms with or without the enzyme.
I have not made a clear comparison between the two situations.
The enzyme appears to reduce symptoms on some occasions.
The enzyme repeatedly produces a clear reduction in symptoms.
6. What happens when you substitute lactose-free milk for regular milk while keeping the rest of the meal similar?
I feel comfortable with both versions.
Both versions produce roughly similar symptoms.
Symptoms are somewhat less noticeable with lactose-free milk.
Regular milk repeatedly causes symptoms while lactose-free milk does not.
7. Beyond digestive discomfort after food, have you experienced symptoms that affect your general health?
I have not noticed fever, unintentional weight loss, or symptoms waking me from sleep.
I have had brief tiredness or appetite changes that resolved.
Digestive symptoms have persisted and are affecting my energy or regular eating.
I have had unintentional weight loss, fever with digestive symptoms, or repeated symptoms that wake me from sleep.
8. During your worst digestive episode, what was the impact of pain, vomiting, or fluid loss?
Any discomfort was mild, and I could eat and drink normally.
I needed to rest or adjust a meal, but I could keep fluids down.
Pain or diarrhea disrupted normal activity, or keeping up with fluids was difficult.
I had severe or worsening pain, repeated vomiting, faintness, very little urination, confusion, or an inability to keep fluids down.
9. Comparing dairy-containing and dairy-free days, which pattern best fits?
I generally have no relevant symptoms on either type of day.
Symptoms occur mainly on dairy-free days or around another identifiable trigger.
Symptoms occur on both types of day without a strong difference.
Symptoms are clearly more common after dairy-containing foods.
10. What happens when you avoid obvious lactose sources for a sustained period?
The relevant symptoms resolve and do not recur during that period.
Symptoms become less frequent but still occur occasionally.
Symptoms continue regularly despite avoiding obvious lactose sources.
Symptoms continue to worsen, interfere with hydration or eating, or repeatedly wake me from sleep.
11. After drinking a regular glass of milk, what most closely matches your usual experience over the next several hours?
I generally notice no digestive change.
I occasionally notice mild gas or fullness, but the timing varies widely.
I often develop noticeable gas or bloating within several hours.
I repeatedly develop a cluster such as bloating, cramps, gas, or loose stool within several hours.
12. Which digestive pattern most often follows a meal containing a substantial amount of dairy?
My digestion feels much the same as after comparable dairy-free meals.
I sometimes notice one mild symptom, such as extra gas.
I commonly notice two symptoms, such as gas with bloating or cramping.
I commonly experience several symptoms together, especially cramping with urgent or loose stool.
13. Imagine you have dairy as part of a full meal rather than by itself. What tends to happen?
I remain comfortable either way.
I notice mild symptoms only occasionally, with no stable timing.
Symptoms still occur but are usually less noticeable with a meal.
The same recognizable symptoms occur whether dairy is eaten alone or with a meal.
14. Over several occasions, what happens as the amount of lactose-rich food increases?
I remain comfortable across the amounts I normally eat.
Symptoms occur unpredictably and do not track the amount.
A larger amount sometimes produces a clearer reaction.
There is a repeated progression from little or no reaction at small amounts to stronger symptoms at larger amounts.
15. How do you respond to lower-lactose foods such as aged hard cheese compared with higher-lactose choices such as milk or some ice creams?
Neither group usually causes relevant symptoms.
I have not compared these foods closely enough to identify a pattern.
Both groups can cause symptoms, but higher-lactose choices tend to affect me more.
Lower-lactose foods are usually comfortable, while higher-lactose choices repeatedly trigger symptoms.