menopause and food allergies and sensitivities
By Lisa Collins | Fact Checked | Sources
Wine gives you a headache now. Cheese makes you feel odd. The bread you have eaten your whole life sits like a brick. You have not changed anything and your body has started objecting to things it used to accept without comment.
Something real is going on here, and the words for it matter more than usual, because allergy and intolerance are two completely different situations and one of them is dangerous.
Allergy or intolerance? The difference matters
A food allergy is an immune system reaction. Your immune system treats a protein in the food as a threat. Reactions come on fast, within minutes, and can include hives, an itchy mouth, swelling of the tongue or throat, wheezing, shortness of breath, vomiting, dizziness, a weak pulse and, at worst, anaphylaxis, which is life-threatening.
A food intolerance, also called a food sensitivity, does not involve the immune system at all. It is a digestive problem, usually a shortage of a particular enzyme. Symptoms are abdominal pain, gas, bloating and diarrhea, they come on over hours rather than minutes, and they are miserable rather than dangerous.
Almost everything women notice starting in perimenopause is the second kind. The first kind matters here because adult-onset allergy is more common than people think.
If you ever have swelling of the lips, tongue or throat, difficulty breathing, a sudden widespread rash with faintness, or a feeling that something is very wrong after eating, call emergency services immediately. Anaphylaxis can develop within minutes. If you have been prescribed an epinephrine auto-injector, use it first and then call. Do not wait to see if it settles.
Can food allergies really start in adulthood?
Yes, and it is more common than the childhood framing suggests. According to FARE, Food Allergy Research and Education, 32 million Americans have food allergies, which is 1 in 10 adults and 1 in 13 children. At least 15 percent of people with food allergies are first diagnosed as adults, and more than 25 percent of adults with food allergies say theirs developed in adulthood.
Although more than 170 foods have been identified as causing allergic reactions, nine account for most of them in the United States: milk, eggs, peanuts, tree nuts, wheat, soy, fish, crustacean shellfish and sesame.
So if you are 50 and reacting to shellfish for the first time, that is not impossible and it is not you imagining things. It needs proper testing, not a guess.
Why does perimenopause change how you react to food?
Two mechanisms, and the first is the more interesting one.
Histamine. Estrogen stimulates the release of histamine from mast cells, and it also affects diamine oxidase, the enzyme that breaks histamine down. So as estrogen fluctuates, the amount of histamine circulating and your ability to clear it both move.
Histamine is also present in food. Aged and fermented things are highest: red wine, aged cheese, cured meat, sauerkraut, soy sauce, vinegar. Others prompt your own cells to release it, including bananas, avocado, chocolate, pineapple, tomatoes and shellfish.
This is why so many women describe a new problem with red wine and aged cheese specifically, and why the reaction can be a headache, flushing, a stuffy nose or itching rather than a stomach ache. It is also why it varies day to day, since it is a threshold effect rather than a fixed allergy. Some days you have more room than others.
Slower digestion. Falling estrogen and progesterone slow gut transit. Food sits longer, gets fermented more by gut bacteria, and produces more gas, bloating and pain. Things you tolerated at a faster transit speed become uncomfortable at a slower one.
If flushing and a runny nose are more your pattern than digestive symptoms, menopause and allergies covers the wider histamine picture.
What are the common intolerances?
Lactose. Lactase production falls with age in most of the world's population, so lactose intolerance genuinely does appear in midlife. It is the single most common thing to test on yourself, and the easiest.
Histamine. As above. Less well known and increasingly recognized in this age group.
Gluten. Worth separating carefully. Celiac disease is an autoimmune condition, not an intolerance, it is diagnosed later in women than in men, and it needs a blood test done while you are still eating gluten. Non-celiac gluten sensitivity is a different and less well defined thing. Do not cut gluten out before testing, because that makes the test unreliable.
Cleveland Clinic's overview of food intolerance is a good general reference, and there is more in our own piece on food allergies and intolerances in perimenopause and menopause.
Are food sensitivity tests worth the money?
Not the ones sold directly to you, and this is worth saying plainly because they are expensive and heavily marketed to women in exactly this situation.
IgG food sensitivity panels, the ones that come back with a long list of foods to avoid, are not supported by allergy and immunology professional bodies as a way of diagnosing food intolerance. IgG antibodies to food are generally understood to reflect exposure rather than intolerance. In practice they tend to flag whatever you eat most, which is why so many results tell people to give up eggs, dairy and wheat.
The risk is not just the money. It is that women end up on unnecessarily restricted diets, which is a real nutritional problem in midlife when protein and calcium matter more, not less.
What is validated: skin prick testing and specific IgE blood tests for true allergy, arranged through a doctor. Hydrogen breath testing for lactose intolerance. Celiac serology for celiac disease. And an elimination and reintroduction done properly, which costs nothing.
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How do you work out what it actually is?
Keep a record before you cut anything
Two or three weeks of what you ate, when, what happened and how long afterwards. Note where you are in your cycle too, since a histamine problem often looks worse at particular points. Patterns show up in writing that are invisible in memory.
Test one food at a time
Remove it completely for two weeks, then reintroduce it properly and watch. One food. Cutting out five things at once produces a restricted diet and no information about which one mattered.
Start with dairy, then look at the histamine list
Dairy first because lactose intolerance is the most likely. Then, if your symptoms are more headaches, flushing, itching or congestion than digestive, try lowering high-histamine foods for two weeks and see whether the threshold lifts.
Manage rather than eliminate, where you can
With an intolerance, small amounts are often fine, which is a very different life from total avoidance. Lactose-free dairy products work well, and over-the-counter lactase enzymes let many people eat dairy normally.
With a true allergy, avoidance is not optional
Read every label, ask in restaurants, and be direct about it rather than apologetic. When in doubt, do not eat it. If you have been prescribed an epinephrine auto-injector, carry it, check the expiry date, and make sure someone you spend time with knows where it is and how to use it.
Look after your gut generally
Smaller meals more often, chewed properly, since transit has slowed. Fiber increased gradually rather than suddenly. Movement after meals. All of this reduces the general load, which raises your threshold for everything else.
When should you see a doctor?
For anything that looks like a true allergic reaction, ask for a referral to an allergist for proper testing rather than working it out yourself.
Also see a doctor for severe diarrhea or abdominal pain, blood in your stool, unexplained weight loss, or persistent symptoms you cannot pin to a food. Ask about celiac testing if you have never had it, and do that before you cut gluten out.
Take your food diary with you. It is the single most useful thing you can bring.
The short version
Allergy is an immune reaction that comes on within minutes and can be life-threatening. Intolerance is a digestive problem that comes on over hours and is unpleasant rather than dangerous. Most of what changes in perimenopause is the second kind, driven by estrogen's effect on histamine release and clearance, and by slower gut transit. That is why red wine and aged cheese so often become a problem. Adult-onset allergy is real, so get anything that looks like a true reaction tested properly. Skip the direct-to-consumer IgG sensitivity panels, which are not supported for diagnosing intolerance and tend to put women on unnecessarily restricted diets. Keep a diary, test one food at a time, and do not cut out gluten before celiac testing.
Related perimenopause and menopause symptoms
- Menopause and allergies
- Menopause and hard bloated stomach
- Menopause and irritable bowel syndrome
- Menopause and acid reflux
Frequently Asked Questions
What is the difference between a food allergy and a food intolerance?
A food allergy is an immune system reaction to a protein in the food. It comes on within minutes and can include hives, swelling, wheezing and anaphylaxis, which is life-threatening. A food intolerance does not involve the immune system, is usually an enzyme shortage, causes pain, gas, bloating and diarrhea over hours, and is unpleasant rather than dangerous.
Can you develop food allergies in your 40s and 50s?
Yes. According to FARE, at least 15 percent of people with food allergies are first diagnosed as adults, and more than 25 percent of adults with food allergies report that theirs developed in adulthood. A new reaction in midlife should be tested properly rather than assumed to be intolerance.
Why do I suddenly react to red wine and cheese in perimenopause?
Estrogen stimulates histamine release from mast cells and also affects diamine oxidase, the enzyme that breaks histamine down. Aged and fermented foods such as red wine, aged cheese, cured meat and sauerkraut are high in histamine. As estrogen fluctuates, your histamine threshold moves, which is why reactions vary from day to day.
Are IgG food sensitivity tests accurate?
Direct-to-consumer IgG food sensitivity panels are not supported by allergy and immunology professional bodies for diagnosing food intolerance. IgG antibodies to food generally reflect exposure rather than intolerance, so results tend to flag whatever you eat most. The bigger risk is women adopting unnecessarily restricted diets at an age when protein and calcium matter more.
Should I stop eating gluten to see if it helps?
Get celiac testing first, while you are still eating gluten, because removing it beforehand makes the test unreliable. Celiac disease is an autoimmune condition rather than an intolerance, and it is diagnosed later in women than in men.
When is a food reaction an emergency?
Call emergency services immediately for swelling of the lips, tongue or throat, difficulty breathing, a sudden widespread rash with faintness, or a strong sense that something is very wrong after eating. If you have been prescribed an epinephrine auto-injector, use it first and then call. Anaphylaxis can develop within minutes.
