What is Chelated Zinc

Chelated zinc is a specially processed zinc supplement that enhances its bioavailability by binding with a chelating agent. The chelating agent forms a stable compound with zinc metal ions, making it easier for the body to digest and absorb.

Zinc Element

Zinc is a trace nutrient present in every cell of the body, and its importance cannot be overlooked. According to the National Institutes of Health, zinc plays several critical roles in health, such as:

• Strengthening the immune system to fight viruses and bacteria.

• Promoting protein synthesis.

• Participating in DNA formation.

• Maintaining the senses of smell and taste.

• Facilitating wound healing.

Due to the limited absorption of zinc, chelating agents act as a bridge, helping zinc form a closer bond with the body. This special zinc supplement can be made with various chelating agents, such as:

• Amino acid-based: Zinc aspartate, zinc methionine, zinc monomethionine, and zinc glycinate, etc.

• Organic acid-based: Zinc acetate, zinc citrate, zinc gluconate, zinc lactate, and zinc picolinate, etc.

However, other forms of zinc supplements exist, such as those combined with sulfate (zinc sulfate) or oxide (zinc oxide).

In summary, when considering zinc supplementation, choosing chelated zinc can provide higher absorption efficiency. However, it is best to consult a healthcare professional before taking any supplements.

Zinc Intake Recommendations and Considerations

Daily Recommended Zinc Intake

According to the Nutrient Reference Values for Australia and New Zealand, the daily recommended zinc intake (in milligrams) is as follows:

Infants

• 0-6 months: 2 mg (Adequate Intake, AI)

• 7-12 months: EAR 2.5 mg, RDI 3 mg

Children and Adolescents

Age	Male (EAR / RDI)	Female (EAR / RDI)
1-3 years	2.5 mg / 3 mg	2.5 mg / 3 mg
4-8 years	3.0 mg / 4 mg	3.0 mg / 4 mg
9-13 years	5 mg / 6 mg	5 mg / 6 mg
14-18 years	11 mg / 13 mg	6 mg / 7 mg

 

Adults

Age	Male (EAR / RDI)	Female (EAR / RDI)
19-30 years	12 mg / 14 mg	6.5 mg / 8 mg
31-50 years	12 mg / 14 mg	6.5 mg / 8 mg
51-70 years	12 mg / 14 mg	6.5 mg / 8 mg
>70 years	12 mg / 14 mg	6.5 mg / 8 mg

 

Pregnancy

Age	EAR / RDI
14-18 years	8.5 mg / 10 mg
19-30 years	9.0 mg / 11 mg
31-50 years	9.0 mg / 11 mg

 

Lactation

Age	EAR / RDI
14-18 years	9 mg / 11 mg
19-30 years	10 mg / 12 mg
31-50 years	10 mg / 12 mg

Note: Vegetarians, especially strict vegetarians, need to consume approximately 50% more zinc than the recommended amounts due to the lower absorption rate of zinc from plant-based foods. Taking high doses of iron supplements during pregnancy or lactation may reduce zinc absorption, so consult a doctor to adjust intake.

Signs of Excessive Zinc Intake

Excessive zinc intake may have adverse health effects, such as:

• Loss of appetite

• Stomach discomfort

• Nausea and vomiting

• Diarrhea

• Low copper levels

• Impaired immune function

• Decreased HDL (good cholesterol) levels

Effects of Insufficient Zinc Intake

Insufficient zinc intake can also negatively impact the body, including:

• Delayed growth in children

• Impaired sexual development in adolescents

• Male sexual dysfunction

• Hair loss

• Diarrhea

• Skin and eye problems

• Weight loss

• Difficulty in wound healing

• Reduced sense of taste and smell

• Decreased attention span

It should be noted that zinc deficiency is relatively rare in New Zealand. When considering increasing or decreasing zinc intake, the best approach is to consult a doctor or nutritionist.

Drug Interactions

Zinc supplements may interact with some medications you are currently taking, including:

• Quinolone and tetracycline antibiotics: Zinc may interfere with the absorption of these antibiotics. It is recommended to take zinc supplements 2 hours before or 4 to 6 hours after these antibiotics, but it’s best to consult your doctor first.

• Penicillamine (e.g., Depen, Cuprimine): This drug may reduce zinc levels in the body. Consider taking zinc supplements 2 hours before penicillamine, but consult your doctor first.

• Thiazide diuretics: These drugs, while helping to lower blood pressure, may increase zinc excretion. If you are taking these diuretics, discuss with your doctor whether zinc supplementation is necessary.

Summary

Zinc is a vital element for bodily functions such as immune support, DNA synthesis, and physical growth. Chelated zinc is a special form of zinc with superior absorption compared to regular zinc. Before taking zinc supplements, consult a doctor to ensure the dosage is appropriate and does not conflict with your current medical treatments.