I have noticed this past Summer, that when I sweat after cutting the grass, or a hard day at work, that my underarm sweat smells rancid and metalic. If you sweat a lot and workout also, it is a smart idea to clean your armpits several times a day. That familiar smell of body odor comes from bacteria interacting with the sweat on your skin’s surface.. If they are becoming ill, their breath can smell like pennies. I've heard other people say they get a mettalic taste in their mouth (others describe it as tasting like blood b/c of the copper) in addition to the ammonia and mettalic smells. Another common cause of body odor is stress, because when you stress excessively, your apocrine glands switch on, and this excess sweat … The skin can as well react with metallic zips and fasteners in your clothes, especially after sweating, resulting in a metallic body odor. 9 Reasons You Have Smelly Sweat and How to Fix It Today. A strange body or breath odor-different from the typical locker-room type of body odor with which most of us are familiar-could indicate a health problem. I'm wondering if the lingering mercury in my body is being sweated out and smells like this. You're way more stressed than usual. 2. Food can also make people sweat more, and some foods can cause a sour odor in the sweat. Chronic smelly sweat is known as bromhidrosis — and there are many possible causes behind the condition. But contrary to popular belief, sweat by itself is virtually odorless. It may smell a bit off, but at least it's a sign your diet is working. I would advise that you see your doctor regarding this to be sure of no major pathology. Having hair under your arms is yet another reason why you have a strong body smell. When sweat starts to have a strong odor, specifically a metallic smell, then this could be a sign of toxicity of some sort. The addition of impaired taste and smell to the list of coronavirus symptoms has prompted questions if a metallic taste is a reliable indicator of the coronavirus. It has used up all the glucose in your blood and attacks your fat stores. I smell metallic breath or body odor on people frequently. Spicy food, such as peppers, can cause an offensive body odor, and the aroma of onions and garlic can also be noted in sweat. A metallic body odor can also result from a reaction between metallic tools and the skin especially in individuals whose occupation involves using metallic tools every now and then. 3. 3. it smells horrible. Menstruating women smell pungently meaty, not metallic. Dealing with armpit odor and smelly sweat isn't fun. The best experience is to shave your underarms to set off the evaporation of sweat and have less bacteria. Shave Your Underarms. Unless you skipped out on deodorant, no one is likely to notice. If you notice that your sweat has begun to smell sweet, you should bring it to your doctor's attention. Doctors recommend paying attention to diet when experiencing sour smelling sweat and eliminating the offending food, notes WebMD. Everyone sweats. Good Luck. There could be an organic pesticide toxicity, and/or a metal toxicity such as mercury or lead. Your Sweat Is Ripe. Thank you for your question.