Zinc plus Selenium
Dr. Mercola
Zinc plus Selenium
Selenium 200 mcg
Copper 0.25 mg
Score 92.0
An excellent value, high-quality zinc and selenium supplement with bioavailable forms, ideal for consistent daily support.
Quantity: 90 Capsule(s) • (90 servings)
Goals:
Detoxification
Hair Health
Nail Health
Immunity
Metabolism Boost
Score 92.0
An excellent value, high-quality zinc and selenium supplement with bioavailable forms, ideal for consistent daily support.
Analysis
This larger package of Dr. Mercola's Zinc plus Selenium offers the same excellent formulation as its smaller counterpart, featuring highly bioavailable Zinc Bisglycinate Chelate, Copper Bisglycinate Chelate, and Selenium Yeast. This provides transparent and effective support for immunity, general health, skin, and metabolic functions. The increased quantity significantly improves the cost-effectiveness per serving, making it a superior value for regular, long-term use. As with the smaller size, while the mineral forms are premium, the zinc-to-copper ratio remains quite broad, a consideration for those with specific dietary copper limitations or very prolonged high-dose zinc regimens.
Pros
- Uses highly bioavailable chelated forms of Zinc (Bisglycinate Chelate) and Copper (Bisglycinate Chelate).
- Provides an effective dose of Selenium in a well-absorbed form (Selenium Yeast).
- Offers significantly better value per serving due to the larger quantity.
- Excellent transparency with all ingredient dosages clearly listed.
Cons
- The low copper dose relative to zinc might not fully balance long-term zinc supplementation for all users, potentially requiring additional copper.
Warnings
- Individuals taking other supplements containing zinc or selenium should monitor their total daily intake to avoid exceeding tolerable upper limits.
$19.97($0.22 per serving)
 Amazon | $ 19.97 | |
 iHerb | $ 21.99 | |
 Vitacost | $ 27.69 |
Effectiveness for goals
Yes, selenium is crucial for the proper functioning of the thyroid gland. It is involved in the synthesis and metabolism of thyroid hormones. Several selenoproteins help protect the thyroid from oxidative stress, supporting its healthy operation.
Selenium is crucial for the proper functioning of the thyroid gland, as it is involved in the synthesis and metabolism of thyroid hormones. Several selenoproteins are present in the thyroid, protecting it from oxidative damage and regulating its activity.
Selenium is an essential trace mineral that contributes to antioxidant defense systems and thyroid hormone metabolism. It is a component of selenoproteins, which play diverse and vital roles in maintaining overall health. Adequate selenium intake is important for these functions.
Copper is an essential trace mineral involved in numerous physiological processes, including energy production, iron metabolism, and nerve function. It also contributes to the formation of connective tissues. Maintaining adequate copper levels is important for overall health.
Selenium is an essential trace mineral involved in various bodily processes, including thyroid hormone metabolism and DNA synthesis. It also acts as an antioxidant, helping to protect cells from oxidative damage.
Dosage, timing & forms
The recommended daily allowance (RDA) for selenium for adults is 55 micrograms (mcg). Supplement dosages often range from 50 to 200 mcg, depending on individual needs and dietary intake. It's important not to exceed the tolerable upper intake level (UL) of 400 mcg per day from all sources.
High doses of zinc can interfere with copper absorption, so some sources suggest taking them at different times of the day or in balanced ratios. Consult product labels for specific recommendations.
The recommended daily allowance (RDA) for copper for adults is 900 micrograms (mcg). Supplement dosages typically range from 1 to 2 milligrams (mg), sometimes slightly higher if addressing a specific need. The tolerable upper intake level (UL) for copper for adults is 10 mg (10,000 mcg) per day.
For adults, typical daily selenium supplement dosages often range from 50 to 200 micrograms (mcg). It's important to consider dietary intake when determining supplement needs.
Selenium and copper can generally be taken together, but there's a delicate balance as high doses of one can potentially affect the absorption or metabolism of the other. It is often recommended to maintain appropriate dosages and consult a healthcare professional regarding specific combined supplementation, especially if taking high amounts of either.
Safety & interactions
Yes, copper intake can interact with other minerals. High doses of zinc can interfere with copper absorption and metabolism, potentially leading to copper deficiency. Conversely, excessive copper intake may reduce zinc absorption.
Excessive selenium intake can lead to selenosis, characterized by hair loss, brittle nails, gastrointestinal upset, skin rashes, and neurological symptoms. The tolerable upper intake level (UL) for selenium is 400 micrograms per day for adults. Consistently exceeding this limit increases the risk of adverse effects.
High doses of copper can result in toxicity, leading to symptoms such as nausea, vomiting, abdominal pain, and diarrhea. Chronic copper overload can cause liver damage, kidney dysfunction, and neurological problems. The tolerable upper intake level (UL) for copper in adults is 10,000 micrograms (10 mg) per day.
Excessive selenium intake, known as selenosis, can lead to symptoms like hair loss, brittle nails, skin rash, and a garlic breath odor. More severe cases might involve neurological issues, fatigue, and gastrointestinal distress. The severity often depends on the dose and duration of high intake.
Individuals with Wilson's disease, a genetic disorder causing copper accumulation, must strictly avoid copper supplementation and often require medical treatment to reduce copper levels. Others with severe liver or kidney conditions, or those with unexplained anemia, should also exercise caution and seek medical advice before considering copper supplements. Excessive copper can exacerbate these conditions.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Zinc | 15 mg |
Selenium | 200 mcg |
Copper | 0.25 mg |
Adults 18–50
Report overviewCategories
Selenium 90.0
The product delivers an optimal dose of 200mcg of selenium in the Selenium Yeast form, which is highly regarded for its bioavailability and effectiveness in supporting various health functions.
Copper 70.0
While copper is provided in an excellent, highly absorbable Copper Bisglycinate Chelate form, the quantity (0.25mg) is relatively low, leading to a wide zinc-to-copper ratio that may not be ideal for all individuals over prolonged periods.
Goals
Immunity 95.0
Both zinc and selenium are powerful immune modulators, and their presence in well-absorbed forms and optimal doses provides robust support for immune system function. This makes the product highly effective for immunity.
General Health 90.0
By providing two crucial trace minerals in highly bioavailable forms, the product contributes significantly to numerous essential physiological processes. These minerals are foundational for overall cellular health and function.
Anti-Aging 85.0
Selenium acts as a potent antioxidant, protecting cells from damage, while zinc plays a key role in cellular repair and regeneration. These combined actions support various anti-aging mechanisms at a cellular level.
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