In some products, selenium is present in protein- or amino acid chelated forms; in still others, the form of selenium is not disclosed. Current evidence favors selenomethionine over the other forms of selenium. [tandfonline.com]

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]

"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]

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]

• 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]

  GliSODin General health: this food supplement combines SOD, selenium, vitamin B12 and zinc to strengthen the body and reduce stress and fatigue. [glisodin.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]

• Overeating

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

  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]

  […] 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]

  Current evidence favors selenomethionine over the other forms of selenium. [tandfonline.com]

• Nausea

  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]

  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]

  An overdose of selenium may cause bad breath, fever, and nausea, as well as liver, kidney and heart problems and other symptoms. At high enough levels, selenium could cause death. Interactions. [webmd.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]

• 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]

  Symptoms of selenium toxicity include diarrhea, hair loss, brittle nails, and other gastro-intestinal upset. [stopthethyroidmadness.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 loss [medicalnewstoday.com]

• Normal Hair

  It also helps to maintain normal hair and nails. Selenium also helps with the normal function of the thyroid and contributes to normal spermatogenesis. Due to its antioxidant benefits, selenium protects cells from oxidative stress. [hollandandbarrett.com]

  Selenium contributes to normal thyroid functioning and to the maintenance of normal hair and skin plus normal spermatogenesis. The selenium tablets now come in two different strengths; 100 micrograms and 200 micrograms of selenium. [multivits.co.uk]

• 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]

  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 loss [medicalnewstoday.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]

(See Kowalska E et al., 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]

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]

Corroborative epidemiologic evidence is limited. [annals.org]

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]

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]

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

Additionally, selenium has been shown to prevent viral mutation of many species and thus prevent recurring infections. [victoriahealth.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]