Could ferrous sulphate supplements be making me anxious?

I've been taking ferrous sulphate for iron deficiency for the past two weeks. Since then I've noticed an increase in anxiety symptoms. I also take zinc, magnesium and a vitamin B complex. Do you think the extra iron could be causing me more anxiety?

Comments for Could ferrous sulphate supplements be making me anxious?

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by: Jude @ anxietyunravelled

Hi, I think it's really unlikely that it is the iron that is causing you to feel more anxious. It's a pretty neutral kind of supplement and if you have been short on iron it's more likely to be helpful than otherwise.

You may be better off visiting your local health food shop and finding an iron supplement that's a bit easier to digest - ferrous sulphate can tend to make people a bit constipated! An Iron Amino Acid Chelate is easier for the body to absorb especially if it has added vitamin C and B vitamins.

All the best,

Ferrous sulphate does cause anxiety
by: Anonymous

Hi, the FDA have issued statements in the past linking a definite side effect of increased anxiety when taking ferrous gluconate, ferrous fume rate and ferrous sulphate. The anxiety itself is harmless but horrible to endure. It is a rare side effect and less than 10% of people taking an iron supplement suffer from it. However it is a side effect, consult with your doctor if the symptoms get unbearable.

by: Judy

Thanks for the comment. It's also true that anxiety can sometimes be linked with lack of iron, which is easier to understand from a physiological perspective. I guess the main thing is, if you think a particular supplement may be an issue try not taking it and see if it makes any difference.

Generally speaking, anxiety can attach itself to almost anything - if we've felt anxious in a particular set of circumstances we can come to the conclusion it's the circumstances that are the cause, rather than the state of our nervous systems. So the highest priority is doing what we can to re-establish a settled mind and body.

Iron supplements
by: Anonymous

Hi all

I've also started Ferrimed 2 weeks ago and experience the same symptoms. Shortness of breath, anxiety, heart palpitations

Iron supplements are giving me anxiety
by: Anonymous

I am 100% positive it is iron. I started taking supplements a few weeks ago and my anxiety started right away. I ran out and didn't go get some right away and noticed after 2 days that I hadn't had any anxiety so went another week without iron without problems. I got more iron today (different brand) and about 1.5 hours after taking it my anxiety was back.

Terrible anxiety from iron pills
by: Joan hammer

Terrible anxiety from taking the iron pills just terrible so I don’t know what to do to get it it’s really difficult to eat enough iron in food to get my iron up I’m anemic so if anyone has any ideas please let me know and my email is Juanita please let me know what I need at

Hi Joan,

You could try Floradix, which is a liquid, plant based source of iron that gets iron levels up very quickly. Because it is plant based and has additional vitamins etc added in it is easily absorbed by the body and might not give you the same problems as other iron supplements. Worth a try I think,


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