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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 how to spend what is yours. Just make it a real comparison: this bottle every month against whatever else that would pay for, and how confident you actually are in the contents.
Qur’an and Sunnah
Eat some of it, paying what is due on the day of harvest, but do not be wasteful: God does not like wasteful people (Quran 6:141). Spending on food is expected, and it is waste that the caution is aimed at.
۞وَهُوَ ٱلَّذِيٓ أَنشَأَ جَنَّٰتࣲ مَّعۡرُوشَٰتࣲ وَغَيۡرَ مَعۡرُوشَٰتࣲ وَٱلنَّخۡلَ وَٱلزَّرۡعَ مُخۡتَلِفًا أُكُلُهُۥ وَٱلزَّيۡتُونَ وَٱلرُّمَّانَ مُتَشَٰبِهࣰ ا وَغَيۡرَ مُتَشَٰبِهࣲۚ كُلُواْ مِن ثَمَرِهِۦٓ إِذَآ أَثۡمَرَ وَءَاتُواْ حَقَّهُۥ يَوۡمَ حَصَادِهِۦۖ وَلَا تُسۡرِفُوٓاْۚ إِنَّهُۥ لَا يُحِبُّ ٱلۡمُسۡرِفِينَ
It is He who produces both trellised and untrellised gardens, date palms, crops of diverse flavours, the olive, the pomegranate, alike yet different. So when they bear fruit, eat some of it, paying what is due on the day of harvest, but do not be wasteful: God does not like wasteful people
Qur’an 6:141read it in the library
Translation: M.A.S. Abdel Haleem, The Qur'an, Oxford University Press, 2004.
What the research says
The realistic size of the benefit matters when you are weighing cost. In middle aged and older adults, longitudinal studies link better diet to a lower incidence of depression, with the effect sizes described as small. Small and real is well worth having when it is cheap. It is a harder purchase when it is expensive and uncertain.
Matison AP, Mather KA, Flood VM, Reppermund S. (2021). Associations between nutrition and the incidence of depression in middle-aged and older adults: A systematic review and meta-analysis of prospective observational population-based studies.. Ageing research reviews doi
Strength of evidence: one line of research. A single study, or a theoretical account.
Why it works
Every pound going one way is not going another, and an uncertain product makes that trade a worse bet.
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
If you are testing whether a food affects you or your child, the test has to be complete. Among children with suspected sensitivity to artificial colouring, most reacted to as little as 100 mg, so a bit left in is enough to blur the answer.
Before settling on depression as the whole story, ask for thyroid function and vitamin D to be checked. Both are common, both are cheap to test, and an underactive thyroid produces a picture that looks like depression from the outside.
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.