Nickel is a trace element found in various foods and environmental sources.
While required in tiny amounts, nickel plays several roles in human health. However, both deficiency and excessive exposure can lead to health issues. This blog will delve into the impacts of nickel on health, its benefits, and potential dietary sources.
• Health Benefits of Nickel
The health benefits of nickel are still being explored, but it is believed to play a role in several enzymatic processes in the body. Nickel is thought to be involved in stabilising the structure of DNA and RNA, thereby supporting the synthesis of genetic material. It may also influence the activity of certain hormones and contribute to metabolic processes that regulate the body’s energy use. Although the precise mechanisms are not fully understood, maintaining an adequate intake of nickel is considered important for overall metabolic health and enzymatic function.
• Nickel Dietary Sources
Nickel dietary sources are predominantly plant-based, with foods like legumes, nuts, seeds, and grains providing the most significant amounts. For example:
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- Legumes: Lentils, beans, and peas are rich in nickel, making them excellent dietary sources.
- Nuts: Almonds, hazelnuts, and walnuts are high in nickel content.
- Whole Grains: Foods like oats, barley, and brown rice are good sources of nickel.
- Vegetables: Spinach, kale, and asparagus provide a substantial amount of nickel.
- Chocolate: Particularly dark chocolate, is also a notable source of dietary nickel.
These foods typically supply enough nickel to meet daily requirements, especially for those following a balanced diet.
• Nickel Deficiency Symptoms
While nickel deficiency symptoms in humans are not well-documented due to its minimal requirement and ubiquitous presence in food, animal studies suggest that a deficiency can lead to adverse effects. These may include impaired growth, altered reproductive performance, and disrupted liver function. Additionally, nickel may play a role in glucose metabolism, and its deficiency could potentially impact blood sugar regulation, although more research is needed to fully understand these effects in humans.
• Nickel Toxicity Symptoms
Nickel toxicity symptoms can arise from prolonged or excessive exposure, particularly in industrial settings or through contaminated food and water. Common symptoms include skin rashes (nickel dermatitis), respiratory issues such as asthma or bronchitis, and gastrointestinal disturbances like nausea and abdominal pain. Chronic exposure has been linked to more severe health concerns, including lung fibrosis, cardiovascular disease, and an increased risk of certain cancers. Nickel allergies are also relatively common, leading to contact dermatitis when skin comes into direct contact with nickel-containing items like jewellery.
• Conclusion
Nickel is a vital trace element with roles in various bodily functions, though it is needed only in very small amounts. While deficiency is rare, understanding nickel’s role and ensuring sufficient intake through dietary sources can help maintain optimal health. Conversely, excessive exposure should be avoided to prevent toxicity, particularly for individuals in industrial settings or those with nickel allergies. If you suspect you’re not getting enough nickel or are concerned about exposure, consult with a healthcare provider to discuss dietary adjustments or the need for further testing.
Disclaimer:
Information and other content provided in Lily & Loaf blogs should not be construed as medical advice and should not be considered a substitute for professional medical expertise. If you have any medical concerns, you should consult with your health care provider.
