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Zinc Picolinate vs. Zinc: What's the Difference?

Zinc Picolinate vs. Zinc: What's the Difference?

Jessica Justh  |

Zinc Picolinate vs. Zinc: What's the Difference?

Zinc is an essential mineral that supports many bodily functions, from immune health to enzyme production. While zinc supplements come in various forms, zinc picolinate is often noted for its efficient absorption and other unique characteristics. Understanding the differences between zinc picolinate and other forms of zinc can help you choose the best option for your health needs.

What are Zinc Supplements and What Do They Do for the Body?

Zinc supplements provide an essential mineral that supports numerous biological processes, including immune function, enzyme production, wound healing, cell growth, and overall metabolic function. Since the human body cannot produce or store zinc, it must be obtained through diet or supplementation to support overall health. 

These supplements come in various forms, each offering different levels of absorption and bioavailability, such as: 

  • Zinc gluconate
  • Zinc sulfate
  • Zinc acetate
  • Zinc citrate
  • Zinc picolinate 

Choosing the right type of zinc supplement depends on a person's individual health needs, dietary preferences, and any pre-existing medical conditions.

Zinc Supplement Benefits

Zinc supplements are commonly used to help maintain adequate zinc levels and support essential bodily functions. Zinc is involved in:

  • Immune Support: Zinc supports healthy immune function by assisting in the activation of immune cells.1
  • Wound Healing: It plays a role in tissue repair and supports the body’s natural healing process.2
  • Enzyme Function: Zinc is required for the activity of over 100 enzymes that facilitate important biochemical reactions.3
  • Growth and Development: It is essential during periods of growth, including pregnancy, infancy, and childhood.4
  • Metabolic Support: Zinc contributes to the production and regulation of hormones, such as insulin, to support healthy metabolic function.
  • Skin Health: It also supports skin health and may be associated with maintaining a clear complexion.6
  • Eye Health: Zinc helps maintain eye health and may support vision.7

Who Should Consider Taking Zinc Supplements

Zinc supplements may benefit:

  • Individuals with zinc deficiencies
  • People with weakened immune systems
  • Those with chronic digestive disorders
  • Individuals managing acne or other skin-related conditions
  • People at risk of age-related vision problems
  • Those following a plant-based diet, which may be lower in zinc

It's important to consult a healthcare provider before starting zinc supplementation, especially if you are taking medications or have pre-existing medical conditions.

What is Zinc Picolinate and What Makes it Unique?

Zinc picolinate is a form of zinc bound to picolinic acid, a compound naturally produced in the body. This formulation is often recognized for its high absorption potential, making it a preferred option for those seeking an efficient zinc supplement.

It may be beneficial for those with specific health needs, like maintaining adequate zinc levels, supporting immune function, and addressing skin or digestive health concerns. Its absorption properties allow the body to effectively utilize zinc for its essential roles. 

Key Features of Zinc Picolinate:

1. Absorption

Zinc picolinate is recognized for its efficient absorption. Studies suggest that it may be absorbed more effectively than other forms, such as zinc gluconate or zinc citrate.8 This increased bioavailability is due to its binding to picolinic acid, which helps transport zinc across the intestinal lining into the bloodstream.

Why It Matters:
Enhanced absorption means the body has more readily available zinc to support vital functions. Zinc picolinate’s bioavailability may be especially beneficial for individuals with low stomach acid or poor digestion, including older adults or those managing chronic health conditions. 

2. Immune Support

Zinc is known for its role in supporting immune health, and the enhanced absorption of zinc picolinate helps ensure adequate zinc levels in the body for this purpose. Zinc supports the function of T-cells, which play a key role in the immune response. 

It also contributes to the production of white blood cells and helps support inflammatory responses, which may aid the body’s ability to recover.1

Who Should Consider It:
Individuals who experience frequent colds and infections or have immune-related concerns may find zinc picolinate helpful in supporting immune function. 

3. Skin Health

Additionally, there are potential zinc benefits for skin. This is because zinc supports healthy skin by supporting inflammatory response, wound healing, and reducing bacterial growth. 

Zinc picolinate may be especially beneficial for individuals managing skin conditions like acne and eczema since it’s one of the best forms of zinc for absorption.6  

Who Should Consider It:
Individuals with persistent skin issues like acne, rosacea, or eczema may consider zinc picolinate as part of their skincare regimen.

4. Digestive Health

Zinc picolinate may also offer benefits for digestive health. It can support the repair and maintenance of the gastrointestinal tract lining, helping to reduce inflammation and promote overall intestinal health.9 

In general, zinc plays a role in the digestion and absorption of essential nutrients like iron and magnesium, contributing to overall nutrient balance in the body. 

Who Should Consider It:
Those with digestive disorders, such as irritable bowel syndrome (IBS) or leaky gut, may find zinc picolinate benefits them by supporting gut function and helping to reduce associated symptoms.

5. Oxidative Stress Reduction

Zinc picolinate is a powerful antioxidant, meaning it helps neutralize free radicals that can cause damage to cells and tissues. By reducing oxidative stress, zinc picolinate supports the body in mitigating chronic inflammation and may contribute to lowering the risk of certain chronic diseases.10

These antioxidant properties may also support brain, heart, and immune health by helping to protect these areas from potential damage.

Who Should Consider It:
Individuals who are exposed to high levels of environmental toxins or chronic stress may find zinc picolinate benefits them due to its antioxidant effects.

Comparing Zinc Picolinate to Common Zinc Supplements

While zinc picolinate is often recognized for its superior absorption, it's important to consider other types of zinc supplements to find the one that best aligns with your health needs. Each form of zinc offers unique benefits and has specific applications based on absorption rates, cost, and intended use.

Here’s a detailed comparison of the most common zinc supplements available: 

Zinc Form

Bioavailability

Best Use

Potential Side Effects

Zinc Gluconate

Moderate

  • Cold relief

  • Immune support

  • Stomach upset

  • Nausea

Zinc Citrate

Moderate to High

  • General supplementation

  • Mild gastrointestinal issues

Zinc Picolinate

High

  • Addressing zinc deficiency

  • Minimal side effects

Zinc Sulfate

Low to Moderate

  • Skin health support 

  • Zinc deficiency

  • Stomach irritation

  • Nausea

Zinc Acetate

Moderate

  • Short-term immune support

  • Minor irritation in lozenges

Zinc Oxide

Low

  • Topical applications

  • Poor oral absorption

Zinc Bisglycinate

High

  • Sensitive stomachs, high absorption

  • Rare side effects

Zinc Orotate

Moderate

  • Cellular absorption

  • Limited research


1. Zinc Gluconate

Zinc gluconate is a common form of zinc used in over-the-counter supplements and products designed for immune support.11 It's often found in lozenges, syrups, and nasal sprays intended for supporting the body’s natural defense systems. 

Pros:

  • Affordable and widely available
  • Commonly used in products aimed at supporting immune function
  • Provides a moderate absorption rate

Cons:

  • May cause mild stomach upset, especially on an empty stomach
  • Absorption rate may be lower compared to other forms like zinc picolinate or zinc bisglycinate8

Best For: Individuals looking for an affordable zinc supplement for general immune support or products designed to alleviate cold symptoms. 

2. Zinc Citrate

Zinc citrate is another commonly used form of zinc supplement. It offers good bioavailability with an absorption rate similar to zinc gluconate.12 For this reason, it is frequently included in general zinc supplements.

Pros:

  • Absorbed better than zinc oxide
  • Gentle on the stomach compared to some other forms
  • Suitable for long-term use

Cons:

  • Slightly less bioavailable than zinc picolinate
  • May have a sour taste in lozenge form

Best For: General supplementation to support immune health, enzyme functions, and overall wellness.

3. Zinc Sulfate

Zinc sulfate is a common form of zinc supplement that is often recommended for addressing zinc deficiency or supporting skin health.13 However, it has a lower bioavailability compared to other forms of zinc.

Pros:

  • Cost-effective and widely available
  • Often used in medical settings to address zinc deficiency
  • May support skin health

Cons:

  • May cause gastrointestinal irritation and nausea
  • Lower bioavailability compared to other forms like zinc picolinate and bisglycinate

Best For: Those looking for a supplement to address zinc deficiency or support for skin health. 

4. Zinc Acetate

Zinc acetate is often found in lozenges and is used to support immune health. Some studies suggest that zinc acetate may be more effective than zinc gluconate in supporting immune function while managing cold symptoms.14

Pros:

  • May help reduce the duration and severity of cold symptoms
  • Provides immune support

Cons:

  • Primarily available in lozenge form, limiting its use for daily supplementation
  • Not widely used outside of cold remedies

Best For: Individuals seeking short-term immune support during cold and flu season.

5. Zinc Oxide

Zinc oxide is typically used in topical products such as sunscreens and diaper rash creams.15 While it is an effective protective agent for the skin, it is less bioavailable when taken orally.

Pros:

  • Ideal for topical applications
  • Helps provide a protective barrier on the skin

Cons:

  • Limited absorption when taken orally
  • Not intended as a primary oral supplement for zinc

Best For: Topical use to help protect and soothe skin irritation, sunburns, and minor wounds.

6. Zinc Bisglycinate

Zinc bisglycinate is bound to glycine, an amino acid. This form is known for its high bioavailability and is generally well-tolerated, making it a suitable option for individuals who have sensitive digestive systems.

Pros:

  • Known for its high bioavailability and good absorption
  • Considered to be well-tolerated, even in higher doses.

Cons:

  • May be less common and more expensive than other forms
  • Limited availability compared to zinc gluconate and zinc picolinate

Best For: Individuals with sensitive stomachs or those looking for a zinc supplement with higher bioavailability.

7. Zinc Orotate

Zinc orotate is a form of zinc bound to orotic acid. It is believed to have good bioavailability, although more research is needed to confirm its absorption rates compared to other zinc forms.16

Pros:

  • Commonly available in zinc supplements
  • May have enhanced cellular absorption due to its binding with orotic acid

Cons:

  • Limited research on its specific benefits
  • May be more expensive compared to other forms of zinc

Best For: Individuals looking for a zinc supplement with potential benefits for cellular health.

Support A Healthy Lifestyle With Double Wood Supplements

For individuals seeking a type of zinc supplement with high bioavailability, Double Wood Supplements' Zinc Picolinate is a good option. It’s designed to provide all the essential benefits of zinc to support immune function, skin health, digestive health, and more. 

Double Wood Supplements offers a range of high-quality zinc supplements to support your health journey. Our supplements are formulated for effective absorption to help you get the most out of your daily health regimen.

Explore our zinc supplements and take a proactive step for your health and well-being. 

Related sources

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC2277319/

[2] https://pmc.ncbi.nlm.nih.gov/articles/PMC5793244/

[3] https://pmc.ncbi.nlm.nih.gov/articles/PMC10003636/ 

[4] https://pmc.ncbi.nlm.nih.gov/articles/PMC5872795/ 

[5] https://pubmed.ncbi.nlm.nih.gov/32932174/ 

[6] https://pubmed.ncbi.nlm.nih.gov/16029676/ 

[7] https://pmc.ncbi.nlm.nih.gov/articles/PMC1472633/ 

[8] https://link.springer.com/article/10.1007/BF01974946

[9] https://pmc.ncbi.nlm.nih.gov/articles/PMC4231515/  

[10] https://pubmed.ncbi.nlm.nih.gov/18295467/ 

[11] https://pmc.ncbi.nlm.nih.gov/articles/PMC2277668/ 

[12] https://pmc.ncbi.nlm.nih.gov/articles/PMC3901420/ 

[13] https://pmc.ncbi.nlm.nih.gov/articles/PMC4120804/ 

[14] https://pubmed.ncbi.nlm.nih.gov/31980506/ 

[15] https://pmc.ncbi.nlm.nih.gov/articles/PMC4120804/ 

[16] https://pubmed.ncbi.nlm.nih.gov/7173277/