Areas › Your body › Food, caffeine and fuel
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. So treating the allergies will not treat the ADHD, but it does take one load off, and an unmanaged allergy sitting in the background makes everything look worse than it is.
Qur’an and Sunnah
Let man consider the food he eats (Quran 80:24). Plain attention to what goes in, including what your body reacts badly to, is treated as worth the trouble.
فَلۡيَنظُرِ ٱلۡإِنسَٰنُ إِلَىٰ طَعَامِهِۦٓ
Let man consider the food he eats
Qur’an 80:24read it in the library
Translation: M.A.S. Abdel Haleem, The Qur'an, Oxford University Press, 2004.
What the research says
This is the standard trap in reading co-occurrence. Pooled studies found people with depression had lower blood levels of omega-3 than comparison groups, which is an association and not evidence that raising those levels treats depression. Things that appear together in data often share a cause rather than one driving the other, and separating those needs a different kind of study.
Lin PY, Huang SY, Su KP. (2010). A meta-analytic review of polyunsaturated fatty acid compositions in patients with depression.. Biological psychiatry doi
Strength of evidence: one line of research. A single study, or a theoretical account.
Why it works
Two things can share an underlying cause and appear together without either one producing the other.
This one is still a draft. It is waiting on a scholar and a clinician to read it before it is published.
Near this one
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.
Low mood that arrives with bloating, fatigue and a foggy head is worth looking at from the food side too. An immune reaction to something you eat regularly can produce all three, and it gets labelled depression far more often than it gets tested.
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.