I’m taking a number of steps to help my body recover from any inadvertent histamine hiccups (ahem, cupcake incidents) I may subject it to. One of them is the food-coaching course I’m taking with my nutritional hero Dr. Fuhrman, and an intensive immersion into herbalism, which I’m sure to expand upon in coming years. I’m currently devouring the modern herbalism bible I’ve seen the Whole Foods naturopathic gurus toting when in deep consult with customers. I naturally started in the immune system chapter where I came across yet another ayurvedic miracle herb.
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Playing histamine detective is easy – here’s how I do it.

Update: nowadays I wish I hadn’t tried so hard to play histamine detective. In the end I believe it became counter productive, causing my amygdala to become hypersensitised and give me a fear of food. Read all about that here.
My decade (plus) as a journalist for CNN and the BBC definitely prepared me to deal with a pesky nuisance like my histamine disorder (be it histamine intolerance or whatever). When faced with a seemingly insurmountable problem – I just take a step back and figure out how the hell to make it work. There is no “can’t” in my vocabulary. Be it chartering private helicopters to airlift equipment, bribing ship captains to let us stow away, or finagleling team visas to Libya on two hours notice (in the Gaddafi years!) – I’ve done it all. So there’s no way I’m letting something like food (or illness) rule my life. I’ve outlined my approach to histamine/inflammation detoxing in my ebook the Anti-Detox – usually employing it before a big client presentation (this histamine chef thing is a side project for me) or when having to fly out to hot climates like Kenya, Morocco, and Egypt, all this last year.
Heat, as you may know, causes mast cells to degranulate, releasing their precious histamine cargo right into your bloodstream. There’s nothing like quite like turning beet red and blowing up into the Michelin man the minute you step off a plane to make you appreciate a good low histamine detox before traveling.
Now I’m going to cover what I believe to be one of the key secrets of successful low histamine living. It sounds so very basic that you may initially laugh: you need to know what food or cosmetic is causing which reaction. Simple right? But I can’t tell you how many emails I receive asking for diet analysis. I don’t mind doing it, but it must be so frustrating living a life where every little thing could be causing distress and there’s no way to figure out what’s what. I’m greatly indebted to Dr Fuhrman’s teachings on this one, as I figured out what was wrong with me initially after going on a three-day water fast. For crystal clear clarity there’s nothing quite like starting with as clean a slate as possible. Nowadays, I don’t do water fasts as any kind of stress can cause mast cells to release histamine – and I‘ve learned the hard way that kicking your body into survival mode definitely isn’t relaxing. The next best thing is the overnight semi fast (sleep!)…
The Test
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Stressed out uterus?

I’m not just going for a catchy headline here – turns out that valerian root is not only a powerful anxiolytic (natural chill out pill) overall, it’s also an antihistamine which helps with menstrual cramps. I mean seriously, the study is actually called:
Relaxing effects of Valeriana officinalis extracts on isolated human non-pregnant uterine muscle.
Valerian extracts may have direct inhibitory effects on the contractility of the human uterus and this justifies the traditional use of this plant in the treatment of uterine cramping associated with dysmenorrhoea….Valerian extract reduced the maximal contractile response induced by acetylcholine, phenylephrine and histamine…Read the full study here.
Told ya I wasn’t making it up! When I was high histamine it was literally impossible to sleep. I would be up for days at a time. Very handy when I was a journalist working in war zones, but not so great when I have a 9am meeting to go through someone’s digital strategy. Generally when people tell me they’re very low histamine I ask how their sleep is. It’s a great indicator of how you’re doing diet-wise. I’m not discounting stress, but we know that also causes mast cell degranulation too!
Now while the studies I read on valerian took great pains to stress that it’s not a hypnotic which knocks you into sleep, it’s an anxiolytic that reduces stress, helping you drop off. Ever wondered why antihistamines make you sleepy? There are a number of reasons – among them is that histamine controls your cicadian rythm/wakefulness hormones, so taking an anti-histamine would naturally make you fall asleep. Given that we know antihistamines make us fat and can cause toxicity syndrome, exploring natural antihistamine herbs could help lull you to sleep.
Please do remember that many of us with histamine issues don’t do great with herbs and that they thin the blood, but I still find these herbs a great substitute for my once ubiquitous nightly glass of red wine. I brew mine into a tea and try a sip. If my nose doesn’t stuff up then I go for it. I’ll be posting my findings over the next few days as I round up the rest of my research. I find that the best way to get a good night’s sleep is to stay low histamine and not eat too late. The not eating late thing is pretty obvious – I like to let the histamine unleash its worst before I’m getting ready for bed. I also try to do a little (very) light relaxation yoga where I pretty much just hang out upside down for about 30 minutes…
If you’re looking for low histamine inspiration, don’t forget to check out my low histamine recipe books.
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3 days off diet = 3 weeks recovery

Today I’m off to see the UK’s only/best mastocytosis specialist. The reason is simple – I want to know exactly what I’m dealing with. Thing is, I don’t suffer like I used to. In fact, it’s almost a distant memory, so right or wrong, I decided show him some of what I used to go through before changing my diet. In short, I went off the grid these last few days.
My 3 day “cheat”
4 slices home made organic wheat bread (with yeast)
8 tbsp agave
1 raw chocolate bar (home made)
1/4 raw chocolate cake (avocado/agave)
8 tbsp sugar free all natural marmalade
1 orange
3 shots of alcohol
1 pack plantain chips (organic)
1/2 box organic cornflakes (2 ingredients – corn and salt)
whole wheat pasta
8 tomatoes
The fallout
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Got allergies? You need this natural antihistamine in your medicine cabinet

yellow berried nightshade Here’s an interesting headline for you: nightshade flower as effective a mast cell stabiliser as commonly prescribed sodium cromoglycate. This definitely brought a smile to my face, given that most of us in the allergic world only have to hear the word nightshade to run a mile in the opposite direction. It also confirmed that some foods we’re told are bad for histamine related conditions, may have benefits that far outweigh the modest amount of histamine they release. Unless you’re allergic to them!
AS EFFECTIVE AS COMMONLY PRESCRIBED MAST CELL STABILISER/ANTIHISTAMINE
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5 top tips to kickstarting your histamine intolerance recovery

Tropical Fruit Cup – On the Go Cookbook A lot of people ask me how I’ve got from total histamine intolerance breakdown to where I am. While I do believe my recovery is still a work in progress, I thought I’d share how a combination of militant food planning, 30 minutes of inflammation fighting yoga and daily chanting (OM!) have allowed me to reach a far better place than I have ever been.
Thanks to my years studying nutrition (unofficially) through the teachings of Drs Fuhrman, Weil, Oz and others, I was well aware my new low histamine diet had the potential to be unhealthy and counter-productive, if applied strictly, and blindly.
To acknowledge something and to implement it are two very different things. It took me a while to get my sea legs. I floundered around for some time, terrified to add new foods or even entertain the idea of being proactive in my recovery. But I knew I had to take action when I began to approach meal time with fear and hatred, focusing on the food rather than the state of my broken body and mind. I was now eating the same five foods every single day, usually in large amounts, not understanding why I wasn’t “recovering”.
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The surprising link between allergies and migraines.

I suffered daily migraines for many years. At some point I finally came to the conclusion that my headaches, which made me bang my head against the wall on occasion, had something to do with my diet. I was vindicated by the person who diagnosed me with histamine intolerance in London, and now by the growing number of studies clearly spelling out the allergy/histamine migraine link.
I cannot even begin to properly thank my lucky stars for curing me of this blight. I was about six weeks into the low histamine diet when I was able to trash the 600mg ibuprofen that I had been scarfing daily by the handful for most of my adult life. Not to mention the migraine injections. Youch! You truly haven’t experienced hell till you’ve had a constant migraine for six months.
Interestingly, in Spain (and France), it’s commonly acknowledged that migraines are caused by a lack of the histamine-lowering enzyme diamine oxidase (DAO). Seems that the US and UK are way behind the curve on this one.
But histamine can also cause migraine in “healthy” people:
Headache can be induced dose-dependently by histamine in healthy persons as well as in patients with migraine
(53, 61). Histamine-induced headache is a vascular headache caused mainly by nitrate monoxide (62). Histamine releases endothelial nitrate monoxide upon stimulation of H1R, which is also expressed in the large intracranial arteries (63). In migraine patients, plasma histamine concentrations have been shown to be elevated both during headache attacks and during symptom-free periods. An increase in the number of brain mast cells is associated with pathologic conditions such as migraine, cluster headache, and multiple sclerosis (64). Many migraine patients have histamine intolerance evidenced by reduced DAO activity, triggering of headache by food rich in histamine (eg, long-ripened cheese or wine), and the alleviation of headache (ie, disappearance of symptoms) under a histamine-free diet (57, 65) and therapy with antihistamines (66). Maintz and Novak. Meanwhile, for those of us presenting with histamine intolerance, histaminosis, mastocytosis or mast cell disorders…
This study colludes that: “Thus, the avoidance of allergic conditions in migraine patients may be a simple, helpful way for prophylaxis or their treatment.”
Although migraine affects about 15% of population and many studies have been performed to find the mechanism and a successful management, the physiopathology of migraine is still largely unknown. The possibility of an immunoglobulin E (IgE)-mediated allergic mechanism and the role of histamine remain controversial. The aim of the present study was to evaluate serum total IgE and histamine levels in migraine patients and the influence of allergy on them. Seventy patients (18-58 years) with migraine without aura were divided into two groups according to their history of allergy (60% with and 40% without allergy). Serum samples were collected during fasting without allowing any premedication during the two periods of attack and remission. There was a control group containing 45 healthy volunteers. Serum total IgE and histamine levels were measured by enzyme-linked immunosorbent assay and fluorimetric methods, respectively. Mean and standard errors of serum histamine (ng/ml) and total IgE (IU/ml) levels were found in the control group to be 48.16 +/- 2.70 and 38.31 +/- 3.20, in the migraine with allergy group 159.11 +/- 4.60 and 303.30 +/- 42.50 and in the migraine without allergy group 105.01 +/- 8.50 and 79.07 +/- 2.70, respectively. Total IgE levels in migraine with allergy group were found to be significantly (P < 0.0001) above that in the control and another group, suggesting an influence of an IgE-mediated mechanism on migraine. Although the plasma histamine levels, which were significantly elevated (P < 0.0001) in patients with migraine, both during headache and symptom-free periods, when compared with the control group, indicate that there is an increased susceptibility to histamine in allergic conditions, this molecule has also an unrelated role in migraine. The relationship between allergy and migraine can be based, in part, on an IgE-mediated mechanism, and histamine release plays an important role. Thus, the avoidance of allergic conditions in migraine patients may be a simple, helpful way for prophylaxis or their treatment.
Has a low histamine or tyramine diet helped your migraines? As always, I’d love to hear from you and don’t forget to check out my diamine oxidase boosting recipes.
You’ll find a collection of all liquid high nutrient antihistamine and anti-inflammatory rich recipes for days when my histamine bucket overflowed in the new Anti-Detox book.
The Anti-cookbook, while it doesn’t treat any conditions, due to its high nutrient, antihistamine and anti-inflammatory ingredients, has been instrumental in helping me feed myself on a limited diet. It features a six page list of antihistamine and anti-inflammatory foods. It comes in regular and Paleo.
The Low Oxalate Cookbook features antihistamine and anti-inflammatory rich recipes.
Don’t miss the Low Histamine Beauty Survival Guide for non-toxic beauty tips, the skinny on histamine releasing (mast cell degranulating) beauty ingredients, antihistamine and anti-inflammatory beauty alternatives and the top brands natural brands I’ve found.
Take a peek at my other low histamine and antihistamine cookbooks for more high nutrient recipes.
If you’ve found this information useful I’d appreciate your support (at no extra cost to you!) – please check out my online store for your health foods, supplements, kitchen items and beauty product purchases. Affiliate sales through my online store go towards maintaining the website, funding travel to interviews and purchasing all the lovely foods for my free online recipes. You’ll find these items in the “Shop with us” drop down menu on my homepage.
Please don’t forget antihistamine, pain killing foods can still hurt us, so please always check with your doctor before adding new foods to your diet.
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Surfing the crimson wave make you crazy? Could be histamine…

A little insulting but still pretty funny… Tired of your man attributing every nuance of behavior to your menstrual cycle? Well, he could have a point, but you’d die before admitting it (yup that’s me I’m talking about).
Well here’s a little nugget to wave under his nose. It’s not the menstrual cycle, it’s the histamine stupid!
Japanese researchers have (re)confirmed that the histamine lowering diamine oxidase enzyme (DAO) is influenced by the menstrual cycle.
“Serum DAO levels were influenced by the menstrual cycle. Furthermore, our findings suggest that serum DAO levels should be interpreted cautiously in premenopausal women.”
This could explain why an allergy to food or environment seems to affect you differently each time, depending on where you are in your cycle and how much histamine-lowering diamine oxidase is available to you.
We know from Maintz and Novak’s seminal histamine study, that DAO is at its highest during pregnancy (500% – 1000% higher) so it’s a not unreasonable to conclude that lower hormones = lower diamine oxidase? BUT, that’s not right…
“estrogen can influence histamine action. A significant increase in weal and flare size in response to histamine has been observed to correspond to ovulation and peak estrogen concentrations (118).” Maintz and Novak.
This would seem to point to diamine oxidase being lower during ovulation – though we’re now not taking the potential involvement of monoamine oxidase and HNMT (the other enzymes involved in histamine metabolism) into account. Phew, I’ve confused myself. What is certain is that high histamine mimics the symptoms of anxiety so if you have a histamine-related disorder, certain times of the month are going to be tougher than others.
So, where does this leave your average diamine oxidase impaired lass?
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Your own personal food histamine sensor? It’s almost here!

Star Trek Tricorder Replica – my idea of what the new histamine sensors will look like… “The ultimate goal of the project is to produce detectors for expert and non-expert staff to assess when unhealthy levels of biogenic amines have accumulated in foodstuffs.”
That means we’ll soon be able to measure the level of histamine at the dinner table! How incredible would that be?
From the University of Brighton website…
“They include the heterocycles histamine, tryptamine, tyramine and phenylethylamine, and the linear polyamines putrescine, cadaverine, spermine and spermidine. These compounds are found in high levels in foodstuffs that involve microbial processing steps, e.g. cheese which contains up to 1 g kg-1 of BAs. Their concentrations are closely linked to the presence of toxic bacteria, particularly in fish decomposition.”
As a closet sci fi nerd (with a serious case of histaminosis/histamine intolerance) I’ve spent the last two years wondering why these don’t yet exist. This news is another sign that the scientific and medical community is finally taking a real interest in this subject. Would you buy one? I wonder what the price point on something like this would be.
I have more interesting histamine testing news coming up in the next few weeks. Stay tuned for some seriously exciting news!
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Is your anti-histamine making you fat?

In last week’s post “Histamine’s upside: I lost 35kgs in 6 months” I mentioned the role of histamine in appetite suppression. I recently had a conversation with a friend whose family member suffers from anorexia nervosa. I felt compelled to share that in my teens I too was thought to be anorexic. Food was hurting me so badly that I was starving myself to make it stop. It was more than just a physical reaction, because as we know, histamine is a neurotransmitter and as such affects mood. Food made me crazy, depressed, anxious and manic but I had no clue what was causing it all, despite my raging allergy symptoms.I’ve spent the last few days doing some more research into what’s behind my suddenly stable weight these last two years:H1 receptor antagonists like loratidine (claritin) and cetirizine (zyrtec) make you fat. It’s just a fact. It’s in the medical inserts of both and my own personal hellish experience on them confirms it. At my worst, when I was taking one and a half to two pills daily, I became obsessive about food – to the point of dreaming about eating. I would get up several times a night to rummage through the fridge and spend almost the entire day absolutely ravenous. I would graze all day long. The most incredible benefit of having stopped them is the relief from my food fantasies. I can now easily go half a day without once thinking about food. Is that abnormal? Seems I have H3 receptor stimulation to thank for it. Studies show that H3 receptor agonists (the opposite of antagonists like Claritin and Zyrtec) suppress appetite. (more…)The H3 receptor is a pre-synaptic autoreceptor that inhibits the synthesis and release of histamine, and a heteroreceptor that inhibits other neurotransmitters such as serotonin (5-HT), noradrenaline (NA) and acetylcholine (ACh), which are also implicated in the regulation of food intake. Thus, the H3 receptor is in a prime position to regulate food intake, both through its control of histamine and its influence on other feeding pathways.Study
Translated into English: as a neurotransmitter, histamine affects the brain chemicals that control hunger!
Not just that, but the studies go on to say that histamine’s H3 receptor plays a part in how our body burns fat and what temperature your body runs at. I know from experience that my body runs very very hot when I’m in histamine overload. Interestingly I did some research into a diet pill I looked into in my teens – it worked by raising your body temperature.
Nowadays I don’t take any antihistamines, choosing instead to control my histamine level through diet (check out my low fat high nutrient low histamine DAO Support Cookbook) and a great quercetin supplement called Neuroprotek.
Next step would be finding out if certain foods affect just one of the histamine receptors, H3 in particular, in order to lose weight. Don’t worry, I’m on the case. Sign up to my newsletter for more info on this subject and others.
