Zinc Glycinate
NOW
Zinc Glycinate
4.8
★ ★ ★ ★ ★
(24452 ratings)
Zinc 30 mg
Score 92.0
An excellent zinc supplement combining highly bioavailable zinc bisglycinate with beneficial pumpkin seed oil at an optimal dosage and great value, supported by strong consumer reviews.
Quantity: 120 Softgel(s)Servings size: 1 Softgel(s) (120 servings)
Selected goals:
Other goals:
Immunity
Skin Health
Hair Health
General Health
Testosterone Support
leaderboard Score 92.0
An excellent zinc supplement combining highly bioavailable zinc bisglycinate with beneficial pumpkin seed oil at an optimal dosage and great value, supported by strong consumer reviews.
insights Analysis
NOW Zinc Glycinate is an exceptionally well-rounded zinc supplement. It utilizes zinc bisglycinate, a chelated form known for its superior absorption and gentle impact on the stomach, which is crucial for long-term daily use. The 30mg elemental zinc dosage is expertly chosen, balancing efficacy for various health goals with minimizing the risk of copper deficiency associated with higher doses. Furthermore, the inclusion of pumpkin seed oil adds a synergistic benefit, particularly for prostate health and general skin wellness, making it more comprehensive than a standalone zinc product. Its widespread popularity and high review count on the internet attest to its consumer trust and perceived effectiveness.
- Uses highly bioavailable Zinc Bisglycinate for superior absorption and reduced GI upset.
- Optimal 30mg daily dosage for long-term general health support.
- Includes pumpkin seed oil, offering synergistic benefits for prostate and skin health.
- Excellent price per serving, providing great value for a premium zinc form.
- Very high review count indicates widespread consumer satisfaction and trust.
- Softgel form may not be suitable for individuals avoiding gelatin or with certain dietary restrictions.
- Individuals taking multiple supplements should be aware of cumulative zinc intake to avoid exceeding the tolerable upper intake level (UL) of 40mg/day for adults, which could lead to copper deficiency over time.
$9.19($0.07 per serving)
 Amazon | $ 9.19 | |
 Vitacost | $ 10.19 | |
 Daily Vita | $ 10.40 | |
 Pure Formulas | $ 10.70 | |
 iHerb | $ 11.01 |
bolt Effectiveness for goals
Zinc is an essential mineral involved in numerous aspects of cellular metabolism, including immune function. It plays a crucial role in the development and function of immune cells. Adequate zinc levels are necessary for proper immune system responses.
Zinc is an essential mineral involved in numerous bodily functions, including immune function, protein synthesis, DNA synthesis, and cell division. It also plays a crucial role in wound healing and the senses of taste and smell. Maintaining adequate zinc levels is important for overall health.
Some research suggests that zinc supplementation, particularly when started within 24 hours of cold symptom onset, may reduce the duration of the common cold. The effectiveness can vary depending on the zinc formulation and dosage. More studies are needed to fully understand its optimal use.
Adequate zinc intake is essential for various bodily functions, including immune system support, protein and DNA synthesis, cell division, and wound healing. It also plays a role in taste, smell, and growth and development. Maintaining sufficient zinc levels contributes to overall health.
Zinc is crucial for the proper functioning of the immune system, affecting the development and function of various immune cells. Adequate zinc intake supports a healthy immune response and helps the body fight off infections. Deficiency can impair immune function.
schedule Dosage, timing & forms
For adult men, the Recommended Dietary Allowance (RDA) for zinc is 11 mg per day, and for adult women, it is 8 mg per day. Pregnant and lactating women have slightly higher recommendations. These amounts are generally sufficient for daily nutritional needs.
The Recommended Dietary Allowance (RDA) for adult men is 11 mg/day and for adult women is 8 mg/day. Many supplements provide dosages ranging from 15-50 mg, often for short-term use. Long-term intake above the Upper Limit (UL) should generally be avoided.
Common forms include zinc gluconate, zinc acetate, zinc picolinate, and zinc citrate. These forms contain elemental zinc, but they can differ in their absorption rates and bioavailability. Zinc oxide and zinc sulfate are also available but may be less bioavailable.
The Upper Limit (UL) for zinc intake from all sources (food and supplements) for adults is 40 mg per day. Consuming amounts above this level long-term can lead to adverse effects, including copper deficiency, impaired immune function, and digestive issues. It is important not to exceed this limit without medical supervision.
For general immune support, dosages typically align with the Recommended Dietary Allowance (RDA) of 8-11 mg per day. Some short-term uses, such as during the common cold, have explored higher dosages. However, it is crucial not to exceed the tolerable upper intake level of 40 mg daily for adults for extended periods.
health_and_safety Safety & interactions
Consuming very high doses of zinc can lead to acute toxicity symptoms such as severe nausea, vomiting, abdominal pain, and headache. Chronic high intake can result in copper deficiency, impaired immune function, and reduced HDL ("good") cholesterol levels. It is important to adhere to recommended daily intake limits.
Excessive zinc intake, particularly above the Tolerable Upper Intake Level, can lead to symptoms like nausea, vomiting, loss of appetite, abdominal cramps, and diarrhea. Chronic high intake can also impair copper absorption, leading to copper deficiency and potential neurological issues or anemia.
Yes, high-dose or long-term zinc supplementation can interfere with copper absorption, potentially leading to a copper deficiency. This is because zinc and copper compete for absorption in the small intestine. It's often recommended to monitor copper levels or take a balanced supplement if using high-dose zinc long-term.
For most adults, the tolerable upper intake level (UL) for zinc is 40 mg per day from supplements and food combined. Consuming more than this amount regularly increases the risk of adverse effects, such as copper deficiency and immune impairment. Always check supplement labels and consult a healthcare professional.
Common side effects can include nausea, vomiting, diarrhea, and abdominal pain, especially if taken on an empty stomach. High doses may also cause headaches or a metallic taste in the mouth. These effects are typically mild and temporary.
Ingredients
| Ingredient | Amount per serving |
|---|---|
| Zinc (Zinc Bisglycinate) | 30 mg |
| Pumpkin seed Oil | 250 mg |
Categories
Zinc 92.0
This product represents a strong choice within the zinc supplement category due to its highly bioavailable form, appropriate dosage, and excellent overall value.
Goals
Immunity 95.0
Zinc bisglycinate's high absorption ensures efficient delivery to support immune cell function and overall immune response, making it highly effective for bolstering defenses.
General Health 94.0
As an essential cofactor for over 300 enzymatic reactions, the optimal dosage and high bioavailability contribute significantly to overall cellular health and physiological functions.
Skin Health 93.0
The bioavailable zinc form promotes wound healing and helps manage inflammatory skin conditions, while pumpkin seed oil provides additional nutrients beneficial for skin integrity and appearance.
Recommended Alternatives
92 Value 
Zinc Citrate 50 mg
21st Century
4.8
★★★★★
(46812 ratings)
Offers a highly absorbable zinc citrate form at an exceptionally low cost per serving, delivering outstanding value.
88 Value 
Chelated Zinc 50 mg
21st Century
4.7
★★★★★
(23910 ratings)
Provides a well-regarded chelated zinc form at a very competitive price, balancing quality and affordability.
95 Value 
Zinc Picolinate 50 mg
NOW
4.8
★★★★★
(48401 ratings)
Combines an excellent, highly bioavailable form of zinc with a reputable brand and a very favorable cost per serving, offering superior value.
95 Performance
Zinc Picolinate 50 mg
NOW
4.8
★★★★★
(48401 ratings)
Features zinc picolinate, an excellent bioavailable form, at a higher dose from a highly reputable brand, representing a stronger overall option.
90 Performance 
Zinc Citrate 50 mg
Swanson Premium Brand
4.8
★★★★★
(1308 ratings)
Offers a higher dose of well-absorbed zinc citrate from a reliable brand, providing a robust and effective alternative.
88 Performance
Chelated Zinc 50 mg
21st Century
4.7
★★★★★
(23910 ratings)
Provides a good chelated form of zinc at a higher dose and very competitive cost, making it a strong alternative for potency and value.
90 Budget 
Zinc Gluconate 30 mg
Swanson
4.7
★★★★★
(1155 ratings)
Offers zinc gluconate at a significantly lower cost per serving, providing a basic and very economical zinc option.
88 Budget 
Zinc 50 mg
Spring Valley
4.7
★★★★★
(3388 ratings)
Provides a higher dose of zinc per serving at a remarkably lower cost, representing strong budget value.
92 Budget
Zinc Citrate 50 mg
21st Century
4.8
★★★★★
(46812 ratings)
Delivers a well-absorbed zinc citrate form at a much lower cost per serving, offering excellent value.
92 Value
Zinc Citrate 50 mg
21st Century
4.8
★★★★★
(46812 ratings)
Offers a highly absorbable zinc citrate form at an exceptionally low cost per serving, delivering outstanding value.
88 Value
Chelated Zinc 50 mg
21st Century
4.7
★★★★★
(23910 ratings)
Provides a well-regarded chelated zinc form at a very competitive price, balancing quality and affordability.
95 Value
Zinc Picolinate 50 mg
NOW
4.8
★★★★★
(48401 ratings)
Combines an excellent, highly bioavailable form of zinc with a reputable brand and a very favorable cost per serving, offering superior value.
95 Performance
Zinc Picolinate 50 mg
NOW
4.8
★★★★★
(48401 ratings)
Features zinc picolinate, an excellent bioavailable form, at a higher dose from a highly reputable brand, representing a stronger overall option.
90 Performance
Zinc Citrate 50 mg
Swanson Premium Brand
4.8
★★★★★
(1308 ratings)
Offers a higher dose of well-absorbed zinc citrate from a reliable brand, providing a robust and effective alternative.
88 Performance
Chelated Zinc 50 mg
21st Century
4.7
★★★★★
(23910 ratings)
Provides a good chelated form of zinc at a higher dose and very competitive cost, making it a strong alternative for potency and value.