Your body

Allergies turn up more often alongside ADHD than chance would predict. Worth mentioning your allergy history at an assessment even when nobody asks, since the two seem to travel together.

The likeliest explanation is not that one causes the other. It is that some of the same underlying wiring makes both more likely in the same person.…

Some foods are formulated to be hard to stop eating. That is a design brief rather than a flaw in you, and it goes some way to explaining why one particular snack is the one you think about at eleven at night.

Knowing this moves the fight somewhere you can win it. Willpower at the moment of craving is a poor bet, and a decision made in the shop is a much…

Here is a question that costs nothing: has anyone in your family been told their vitamin D was low? It runs in families through genes, skin tone, where you live and how much time anyone spends outside.

The clinician telling this story found out only afterwards that his mother, father and brother had all been low. Nobody had mentioned it, because it…

Even where a herb has good evidence behind it, that evidence belongs to the plant and not to the bottle in your hand. Testing keeps turning up products that do not contain what the label says.

This part of the argument does not depend on whether herbal remedies work. You could accept every claim made for a plant and still be left with the…

Own brand products from large retailers were among the worst performers in these tests. A big name on the packet is not a quality check, however much it feels like one.

Own label goods are usually made under contract on thin margins with no independent verification of what comes out the other end. So the reassurance…

People often turn to herbal remedies hoping to avoid side effects. Plants are chemistry too, and some of them interact with prescribed medication in ways that matter.

A plant extract is not one substance, it is a mixture of many, which gives it more places to interact rather than fewer. Origin has nothing to do…

Around seven in ten people who use herbal products never mention it to their doctor. Not out of secrecy, mostly because a tea or a gummy does not feel like it belongs on a list of medications.

The useful move is to answer a wider question than the one you were asked. When someone asks what medication you take, tell them what else you take…

Your gut is not just plumbing. It makes many of the same chemicals your brain runs on and it is in constant conversation with your nervous system, which is part of why a bad stretch of digestion and a low mood so often turn up together.

If your stomach has been unsettled for weeks and your mood has slid over the same weeks, you do not have to work out which one is the real problem.…

Put a rubber band round your water bottle for each refill you want to get through today, and slide one off each time you finish it. Nothing to remember, nothing to buy, and you can see where you are at a glance.

Tracking anything in your head is hard when your head is already full, and harder still when concentration is one of the things that has taken a hit.…

Where ADHD and disordered eating meet, the pattern is more often bingeing, or bingeing and purging, than strict restriction. Restriction tends to travel with over-control, while bingeing travels with impulse and reward seeking.

This matters because the questions asked at assessment are usually the restriction ones, so a binge pattern can sit unnoticed for years. If you…

Most claims about food and behaviour rest on weak studies. The ones worth taking seriously give each person both the real thing and a dummy at different times, with nobody knowing which is which, so that hope and expectation cannot do the work.

The food colouring trials are the standard example. Around 150 children each received drinks containing a preservative plus one of two dye mixes, or…

Skin prick and IgE blood tests find real allergies. The IgG food sensitivity panels sold direct to families have not been shown to measure sensitivity at all, and they tend to come back with a long list of foods to avoid.

IgG antibodies mostly show that you have eaten something, not that it harms you, which is why the results look alarming and change so little when…

A real food allergy shows itself on the body: a rash, a swollen or inflamed throat, something you can see. Behaviour on its own does not identify one, although behaviour often improves once a genuine allergy is dealt with.

One child's attention and mood went back to her usual level once berries came out of her diet, and what made that findable was the rash and the sore…

The studies linking pesticide levels to ADHD are tangled up with income, since families least able to buy organic differ in plenty of other ways too. If organic food is affordable for you, fine. If it is not, you are not failing your child.

In one study of 1,140 children, 94% had detectable pesticide in their urine, and ADHD was about twice as common among those with higher…

Most eating advice quietly assumes a budget. Fresh food is expensive and does not keep, so a household relying on food assistance ends up buying what lasts, and what lasts comes in tins and packets.

If money is the constraint, say it out loud rather than nodding along and then failing quietly at home. The advice can be rebuilt around what is…

Put an actual number on it: how many coffees, teas, energy drinks and colas in a normal day. Without that number, your sleep problems, your anxiety and how well a medication is working are all being read against an unknown.

People underestimate this, partly because it feels embarrassing and partly because a large takeaway cup is often two or three servings. Count across…

Stimulants sharpen focus in almost anyone, so responding well to one does not confirm you have ADHD. The diagnosis comes from your history and how you function, not from a trial of tablets.

This cuts both ways. Someone can be handed a diagnosis on the strength of a good response, and someone else can be doubted because their response was…

Food and movement are powerful, and hardly anyone keeps them up as prescribed. So the question is not what works best on paper. It is what you will still be doing in six weeks.

Roughly a third of people follow a prescription exactly as it is written, and keeping to a diet or an activity plan goes worse than that. Which means…

Pick one small change and leave the rest alone. A full overhaul asks the most of you at the point when you have the least to give, and it usually collapses in the second week.

One change, small enough to be almost boring, kept for a month. Then another. It feels slow while you are in it, and it is the version that tends to…

Working out what you have comes before choosing what to take. The right remedy for the wrong condition is still the wrong remedy, however good the remedy happens to be.

The health food shop route usually starts with a self diagnosis, and that first step is the one worth slowing down. St John's wort will do nothing…

Supplements are regulated as food rather than as medicine. Nobody checks strength or purity before a product goes on sale, and the main rule is that the packet cannot claim to treat a disease.

Most people assume the opposite, that anything on a pharmacy shelf has been through some kind of approval. Regulators here generally act only once a…

When researchers ran DNA testing on 13 herbal products, only 2 contained the plant on the label. Three had none of it at all, and several were padded out with rice, soy or wheat that nobody had declared.

The obvious problem is paying for something you did not get. The quieter problem is the undeclared filler, which matters a great deal if you avoid…

A second study, this time of 44 products, found only about half were authentic. Roughly six in ten were mislabelled, three in ten contained a substituted ingredient, and one in five held contaminants or fillers.

One study of this kind is a story about some bad batches. Two independent studies finding the same thing is a description of how the market works.…

If you are going to buy supplements, look for an independent verification mark: USP Verified, NSF, or a product tested by ConsumerLab. It is the nearest thing available to the check that regulators do not carry out.

Those schemes test identity, strength, purity and how a product was made, and manufacturers pay to take part voluntarily. There are different tiers,…

St John's wort can cut the effectiveness of the contraceptive pill by around a third. If you take both, that is worth knowing today rather than finding out later.

It speeds up the way the liver clears certain drugs, so the pill is not the only thing affected. Warfarin, some HIV medicines, ciclosporin and a…

Several herbal products change how fast the liver processes medication, which can leave a prescribed drug either weaker or stronger without a single change to the dose.

This is often why a supplement looks like it caused a relapse or a sudden run of side effects. Nothing about the prescription changed, so the pattern…

Two to be careful with in particular. Yohimbe reliably ramps anxiety up, so much so that it has been used in research to bring panic on, and kava is a sedative that stacks with alcohol and with sedating medication and has damaged livers at higher doses.

Kava has been restricted or banned in several countries over liver harm, which tells you how seriously that risk is taken. Yohimbe is a poor choice…

You cannot patent a plant, so there is little commercial reason to fund expensive trials of one. When you read that a herb has no evidence, that often means nobody paid to look rather than that somebody looked and found nothing.

Both halves of that need saying. No evidence is not proof of no effect, and it is also not permission to assume one. It leaves you with an open…

Some of these do have real evidence behind them. St John's wort has repeated support in mild to moderate depression, SAMe and methylfolate have reasonable backing as additions to treatment, and omega-3 has looked weaker in the larger and better run trials.

That last part is worth sitting with, because it is what usually happens. An early promising effect shrinks as trials get bigger and better…

If you want to use herbal remedies, two things carry most of the risk. Make sure whoever prescribes for you knows what you are taking, and buy from a source that has been independently tested.

That is a short list on purpose. Nearly all the harm in this area comes from an interaction nobody knew about or a product that was not what it…

Herbal products are rarely covered by insurance and they add up quickly. That cost belongs in the decision, particularly when you cannot be sure the capsule holds what it says.

Money spent here is money not spent elsewhere, and often the alternative is a treatment that is covered and has been tested. Nobody is telling you…

What you feel does not stay in your head. Emotional states register in the body's immune signalling too, which is one reason a long stretch of unspoken distress can leave you physically run down.

This is not a claim that you can think yourself well or ill. It is closer to saying the body keeps a tally. If you have been carrying something heavy…

Water, sleep, food and digestion are not the boring preamble to the real work. When those are running badly, everything else you try has less to work with.

It can feel almost insulting to be asked about breakfast when what you carry is so much bigger than breakfast. But a body short of sleep and short of…

Health advice usually assumes a kitchen, a fridge and money for the week. If you are working with less than that, the answer is not to try harder at the advice. It is to shrink the plan until it fits what you actually have.

A plan you cannot keep does more than fail. It quietly adds to the pile of evidence that nothing you do makes any difference, and that pile is heavy…

A physical symptom is not a free floating fact. Read it next to what your life has actually held, the early parts included, and it often makes more sense than it does on its own.

This works in both directions. It stops you treating a body complaint as something random that landed on you, and it stops you treating it as a…

Saying a difficulty is in the past is not the same as saying it was never real. Sometimes a picture changes because something that was making it worse got taken away, and the honest words for that are neither cured nor imagining it.

People who have been disbelieved by doctors are very sensitive to this, and with reason. The choice usually gets offered as either it was all in your…

Months of fog, where thinking feels like wading, is a real complaint and deserves looking into rather than waving away. It usually has more than one cause, which is part of why it gets dismissed.

Fog sits where several things overlap: dissociation, anxiety, poor sleep, thyroid and iron problems, infections, medication. Because it belongs…

If your attention runs low on stimulation, salty and sweet food is the fastest legal source of a lift and it is available all day. Worth knowing about yourself, because it explains a pattern that willpower alone never seems to touch.

Rates of overweight and type 2 diabetes are higher in people with ADHD, and the reasons are not moral ones. A reward system that is under stimulated…

Caffeine buys about half an hour of sharper focus and takes the payment out of your sleep. It is a decent tool for a particular hour, and using it in place of treatment usually leaves you worse off across the day.

Four cups a day and upwards starts producing insomnia, irritability, tremor, an unsettled stomach and a racing heart, and a few people go sleepy on…

Very low vitamin D produces fatigue, low mood and a flatness that looks exactly like depression, and it is not part of routine bloods in most places. If you have never had it measured, it is a fair thing to ask for.

One clinician telling this story about himself had a level that was almost undetectable, and no antidepressant would have raised it, because what was…