Vitamin B12 Vitamin B12 deficiency is present in nearly 40% of people over 25 years of age & over 50% of men over 50 years old. Vegetarians & Vegans are particularly prone to vitamin B12 deficiency. [wiseowlhealth.com]

Find it in these foods Selenium is naturally present in water and many foods, is added to foods and is also available as a supplement. [clicks.co.za]

Once feared as a plant toxin, it has now been proven that specific levels of selenium must be present in your body for important processes to occur and for your body to perform at its best. [naturalwellness.com]

"Selenium is a trace mineral, which means it's present in the body in small amounts and all you need are those small amounts." [mensfitness.com]

Precautions For Use People who live in an area where there is an abundance of selenium present naturally is the soil, such as the Dakotas, should not take selenium supplements. [healthambition.com]

• Fatigue

  Without the important role of the thyroid, metabolism is affected and could result in extreme fatigue or other disorders. [newsmax.com]

  Common symptoms of adrenal fatigue include: Constant fatigue Anxiety or depression Immune system issues Blood sugar issues A compromised inflammatory response and associated conditions Sleep issues Hormonal issues such as lowered sex drive or infertility [drlam.com]

  Know the overdose risks Excessive intake of it may cause the following side effects: Garlic odour on breath Metallic taste in mouth Hair and nail loss or brittleness Nausea Diarrhoea Rashes Lesions of the skin and nervous system Fatigue Irritability Acute [clicks.co.za]

  GETTY Supplement overdose: Symtoms of selenium deficiency include fatigue and a foggy brain Deficiency can lead to Keshan disease, which may cause a weakening of the heart and is potentially fatal. [express.co.uk]

• Overeating

  Vitamin B12 Vitamin B12 deficiency is present in nearly 40% of people over 25 years of age & over 50% of men over 50 years old. Vegetarians & Vegans are particularly prone to vitamin B12 deficiency. [wiseowlhealth.com]

  Perfect for the over 50s. [naturesbest.co.uk]

  […] status, supplementation with selenium and vitamin E (either together or separately), and future rates of prostate cancer in men over 55 years of age. [chriskresser.com]

  Selenium may also be destroyed when foods are overcooked, over-processed or over-refined. Though required only in small amounts, selenium supplementation is an easy way to ensure the body receives this important mineral. [bronsonvitamins.com]

  Selenium Side Effects and Contraindications Taking high doses over a long period can cause toxicity and increased risk of diabetes. [healthpost.co.nz]

• Nausea

  Know the overdose risks Excessive intake of it may cause the following side effects: Garlic odour on breath Metallic taste in mouth Hair and nail loss or brittleness Nausea Diarrhoea Rashes Lesions of the skin and nervous system Fatigue Irritability Acute [clicks.co.za]

  In addition, side effects for excess amounts of selenium include nausea, vomiting, nail changes, loss of energy and irritability. [mensfitness.com]

  Dosages of 1,000 micrograms or more a day can cause nausea, vomiting, hair loss and other problems. As mentioned, a few studies have found that selenium (200 micrograms daily) may raise the risk of diabetes. [berkeleywellness.com]

  Other side effects may include weakened fingernails, diarrhea, increased irritability, itchy skin, hair loss, fatigue, nausea, vomiting, fever, and bad breath. It is important to note that if taken in very high doses, Selenium can be fatal. [consumerhealthdigest.com]

  Compared with the group not receiving selenium, those receiving selenium had a smaller reduction in white blood cell count and fewer chemotherapy side effects such as nausea, hair loss, weakness, and loss of appetite. [uofmhealth.org]

• Vomiting

  In addition, side effects for excess amounts of selenium include nausea, vomiting, nail changes, loss of energy and irritability. [mensfitness.com]

  Dosages of 1,000 micrograms or more a day can cause nausea, vomiting, hair loss and other problems. As mentioned, a few studies have found that selenium (200 micrograms daily) may raise the risk of diabetes. [berkeleywellness.com]

  Other side effects may include weakened fingernails, diarrhea, increased irritability, itchy skin, hair loss, fatigue, nausea, vomiting, fever, and bad breath. It is important to note that if taken in very high doses, Selenium can be fatal. [consumerhealthdigest.com]

  Get emergency help immediately if any of the following symptoms of overdose occur: Symptoms of overdose Diarrhea fingernail weakening garlic odor of breath and sweat hair loss irritability itching of skin nausea and vomiting unusual tiredness and weakness [drugs.com]

  High doses of selenium can cause significant side effects including nausea, vomiting, nail changes, loss of energy, and irritability. [medicinenet.com]

• Diarrhea

  Other side effects may include weakened fingernails, diarrhea, increased irritability, itchy skin, hair loss, fatigue, nausea, vomiting, fever, and bad breath. It is important to note that if taken in very high doses, Selenium can be fatal. [consumerhealthdigest.com]

  Get emergency help immediately if any of the following symptoms of overdose occur: Symptoms of overdose Diarrhea fingernail weakening garlic odor of breath and sweat hair loss irritability itching of skin nausea and vomiting unusual tiredness and weakness [drugs.com]

  Diarrhea from radiation treatments. Early research suggests that taking 500 mcg of selenium on days of radiation therapy and 300 mcg on days without treatments reduces diarrhea by about 54%. Rheumatoid arthritis ( RA ). [medicinenet.com]

  For example, one study found that oral selenium supplements improved overall quality of life and reduced radiation-induced diarrhea in women with cervical and uterine cancer ( 9 ). [healthline.com]

• Metallic Taste

  Know the overdose risks Excessive intake of it may cause the following side effects: Garlic odour on breath Metallic taste in mouth Hair and nail loss or brittleness Nausea Diarrhoea Rashes Lesions of the skin and nervous system Fatigue Irritability Acute [clicks.co.za]

  Symptoms include rashes, dizziness, a metallic taste in your mouth, and more. Stick to one or two Brazil nuts daily, and skip it if you're eating a diet quite high in other selenium-rich foods. [mindbodygreen.com]

  These may include : a garlic-like smell on the breath and a metallic taste in the mouth brittle nails mottled or decaying teeth gastrointestinal problems such as nausea neurological abnormalities fatigue and irritability skins lesions and rashes hair [medicalnewstoday.com]

  Poisoning from long-term use is similar to arsenic poisoning, with symptoms including hair loss, white horizontal streaking on fingernails, nail inflammation, fatigue, irritability, nausea, vomiting, garlic breath odor, and a metallic taste. [medicinenet.com]

• Chronic Dermatitis

  Overt symptoms of acute and chronic selenium toxicity include brittleness and loss of hair and nails, fatigue, neurologic damage, hepatic degeneration, gastrointestinal disturbances, enlarged spleen, and chronic dermatitis (9). [annals.org]

• Muscle Weakness

  This article is Part One of a Series For Part Two, Click Here For part three click here. by Jeffrey Dach MD Susan has Hashimoto’s thyroiditis, an autoimmune thyroid disorder causing fatigue, puffy face and muscle weakness. [jeffreydachmd.com]

• Irritability

  Know the overdose risks Excessive intake of it may cause the following side effects: Garlic odour on breath Metallic taste in mouth Hair and nail loss or brittleness Nausea Diarrhoea Rashes Lesions of the skin and nervous system Fatigue Irritability Acute [clicks.co.za]

  In addition, side effects for excess amounts of selenium include nausea, vomiting, nail changes, loss of energy and irritability. [mensfitness.com]

  […] that selenium supplementation would be an obvious solution to poor thyroid function, long term consumption of high doses of selenium can lead to complications such as gastrointestinal upsets, hair loss, white blotchy nails, garlic breath odor, fatigue, irritability [chriskresser.com]

  Other side effects may include weakened fingernails, diarrhea, increased irritability, itchy skin, hair loss, fatigue, nausea, vomiting, fever, and bad breath. It is important to note that if taken in very high doses, Selenium can be fatal. [consumerhealthdigest.com]

  High doses of selenium can cause significant side effects including nausea, vomiting, nail changes, loss of energy, and irritability. [medicinenet.com]

• Convulsions

  While o ptimal selenium levels are imperative for proper thyroid function, abnormally high selenium intake can be toxic – causing gastrointestinal disturbances, changes in nails and hair, weakness, convulsions and decreased cognitive function. [blog.zrtlab.com]

The results confirm the protective and beneficial effects of vitamin E and selenium on semen quality and advocate their use in male infertility treatment. [ncbi.nlm.nih.gov]

There’s been no progress so far in finding a treatment for this devastating illness, so researchers have been trying to identify successful approaches to prevention. [minnpost.com]

Inexpensive, proven treatments ahead of starting anti-retroviral therapy can fill an important role." Dr. [cbsnews.com]

The trial focused on differences in viral loads and CD4 counts after nine months of selenium or placebo treatment. [poz.com]

[…] of a Dietary Organic Selenium Supplement at Different Dietary Protein Concentrations on Growth Performance, Body Composition and Antioxidative Status of Broilers Reared under Heat Stress Abstract Three hundred chicks were randomly assigned among four treatments [ajas.info]

Selenium deficiency has been implicated in the etiology of Hashimoto’s thyroiditis, and selenium supplementation has been found beneficial. Three Selenium Studies Showing Selenium Beneficial The first study by Dr. [jeffreydachmd.com]

Interacting nutritional and infectious etiologies of Keshan disease: insights from Coxackie virus B-induced myocarditis in mice deficient in selenium or vitamin E. Biol Trace Elem Res. 1997;56:5–21. Xia Y, Hill KE, Byrne DW, et al. [thyroidpharmacist.com]

His research primarily focuses on the epidemiology and prevention of cardiovascular disease and type 2 diabetes. [news-medical.net]

Increased Rates of Chromosomes Breakage in BRCA1 Carriers are Normalized by Oral Selenium Supplementation, Cancer Epidemiology Biomarkers and Prevention 2005. See also Alternative Medicine Magazine, March 2006.) [breastcancerchoices.org]

Corroborative epidemiologic evidence is limited. [annals.org]

However, other studies, including research by Saverio Stranges, professor of cardiovascular epidemiology at Warwick University, have found no such benefit and, indeed, that it ‘may increase the risk for the disease’. [dailymail.co.uk]

Epidemiology 18.1 (2007): 52-58. PubMed. Web. 5 Apr. 2016. Li, Yu-Feng, Zeqin Dong, Chunying Chen, Bai Li, Yuxi Gao, Liya Qu, Tianchen Wang, Xin Fu, Yuliang Zhao, and Zhifang Chai. [globalhealingcenter.com]

Selenium and Thyroid Disease: From Pathophysiology to Treatment. International Journal of Endocrinology. 2017;2017:1297658. doi:10.1155/2017/1297658. Gärtner R, Gasnier BC, Dietrich JW, Krebs B, Angstwurm MW. [thyroidpharmacist.com]

The antioxidants of selenium help the body absorb Vitamin E, which assists in preventing cataracts from forming and plays an important role in the prevention of macular degeneration. [mensfitness.com]

A wave of hope swept through those examining the role of nutrition in cancer prevention, especially to prevent prostate cancer. [irishtimes.com]

But the findings for that study — known as the Prevention of Alzheimer’s Disease by Vitamin E and Selenium, or PREADViSE — were equally disappointing. [minnpost.com]

Selenium for Cancer Prevention Selenium being a source of antioxidants can prevent free radical damage and help prevent cancer especially in stomach, liver, thyroid gland, breast and skin. [medindia.net]

One of the early studies was a trial on the nutritional prevention of cancer in the Eastern part of the US. [news-medical.net]