Heavy Metals
The term heavy metal refers to any metallic chemical element that has a relatively high density and is toxic or poisonous at low concentrations. Examples of heavy metals include mercury, cadmium, arsenic, chromium, thallium and lead.
What are 'Heavy Metals'?
Heavy metals are natural components of the Earth's surface. They cannot be degraded or destroyed. In small amounts they may enter our bodies via food, drinking water and air. As trace elements, some heavy metals (e.g. copper, selenium, zinc) are essential to maintain the metabolism of the human body. However, at higher concentrations, they can lead to poisoning. Heavy metal poisoning could result, for instance, from drinking-water contamination (e.g. lead pipes), high ambient air concentrations near emission sources, or intake via the food chain.
Heavy metals are dangerous when they bioaccumulate. Bioaccumulation refers to an increase in the concentration of a chemical in a person’s body over time. This accumulation occurs when the metals are taken up and stored faster than they are broken down in the body or excreted out of the body.
Heavy metals can enter a water supply by industrial and consumer waste, or even from acidic rain breaking down soils and releasing heavy metals into streams, lakes, rivers, and groundwater. They may also be found in food and medicines.
Acute heavy metal poisoning symptoms:
- diarrhoea
- nausea
- abdominal pain
- vomiting
- shortness of breath
- tingling in your hands and feet
- chills
- weakness
Children with heavy metal poisoning may have unusually formed or weakened bones. Pregnant people may also have a miscarriage or deliver prematurely.
How does chronic, low-grade exposure to heavy metals affect our health?
In more severe cases of chronic heavy metal poisoning, you may experience symptoms including:
- burning and tingling sensations
- chronic infections
- brain fog
- visual disturbances
- insomnia
- paralysis
We live in an environment full of chemicals that our bodies were not designed to process. When it comes to exposure there is a compounded effect. From a naturopathic perspective, chronic toxicity from heavy metals can wreak havoc on our health and result in symptoms ranging from fatigue to sleep and skin issues. It can also be related to autoimmune issues, neurological issues and many other conditions. Unfortunately, conventional medicine rarely examines the role of toxic load when it comes to treating these conditions.
Mercury can also affect the central nervous system by concentrating in the spinal fluid and the kidneys. The chemical can also reduce nerve function and communication, which can lead to the development of neurofibrillary tangles, which is a common feature of Alzheimer’s. Recent findings suggest that the gene ApoE4 may increase the risk for Alzheimer’s because it has an impaired ability to bind with mercury and transport it from the brain[i] [ii].
Heavy metal detox foods to eat include:
- coriander
- garlic
- wild blueberries
- lemon water
- spirulina - try Spirulina 500mg
- chlorella - try Sun Chlorella A
- barley grass juice powder
- Atlantic dulse - try Dr. Schulze's Superfood (400g)(see blow)
- green tea - Yogi Green Tea (20 sachets)
- tomatoes
- probiotics - Your Flora Regenesis (60 caps)
Note: good quality supplements such as spirulina should be used as spirulina absorbs heavy metals and therefore some lower quality products may already be contaminated prior to consumption[iv][iii].
Supplementation for heavy metal toxicity
Dr. Schulze's SuperFood: includes a combination of highly nutritious foods, many of which have been found to be beneficial for the clearance of heavy metals:
- Spirulina Blue-Green Algae
- Chlorella
- Alfalfa, Barley & Wheat Grasses
- Purple Dulse Seaweed
- Rose Hips, Orange and Lemon Peels
- Vitamin B6, and C deficiencies have been associated with poor tolerance of heavy metals[v].
Elimination of some foods from your diet may help with the detox process
- some fish, such as larger and long-living fish, as they tend to contain more mercury
- alcohol
- nonorganic foods
Want more advice?
Talk to usProducts that may help
A selection of products chosen by our team to support this condition, all meeting our Therapy Approved standards.
Green Origins Organic Spirulina Powder (225g)
Nutrient rich spirulina for daily energy
Natural Deodorant - Santal & Vetiver - Sensitive Gel (75g)
Gentle odour protection for sensitive skin
Natural Deodorant - Santal & Vetiver - Extra Strength (75g)
Strong natural protection with subtle warmth
Cleanse Nutrition Programme - Detox Nutrition Plan
Gut reset for renewed energy
Fermented Chlorella 240 Pressed Tablets (200mg)
Plant based protein for daily energy
Phytality Phytoplankton Omega & Multi Powder - Lime & Vanilla (75g)
Vegan omega with complete nutrients
Phytality Phytoplankton Omega & Multi Powder (60g)
Nutrient rich vegan omega powder
Organic Natures Living Superfood
Alkalising greens with daily energy support
Disclaimer
Please note that the information contained within this website does not and should not replace medical advice, and is not intended to treat or diagnose. We always recommend you consult with your doctor. Our Nutritional Therapy team is highly trained and we offer one to one Nutritional Therapy Consultations, which are designed to be complementary to any medical treatment from a functional medicine approach, as well as offering a preventative & optimal health focus.
Academic References
[i] Azar J, Yousef MH, El-Fawal HAN, Abdelnaser A. Mercury and Alzheimer's disease: a look at the links and evidence. Metab Brain Dis. 2021 Mar;36(3):361-374. d
[ii] Siblerud R, Mutter J, Moore E, Naumann J, Walach H. A Hypothesis and Evidence That Mercury May be an Etiological Factor in Alzheimer's Disease. Int J Environ Res Public Health. 2019 Dec 17;16(24):5152.
[iii] Zhai Q, Narbad A, Chen W. Dietary strategies for the treatment of cadmium and lead toxicity. Nutrients. 2015 Jan 14;7(1):552-71.
[iv] Al-Dhabi NA. Heavy metal analysis in commercial Spirulina products for human consumption. Saudi J Biol Sci. 2013 Oct;20(4):383-8.
[v] Ledda C, Cannizzaro E, Lovreglio P, Vitale E, Stufano A, Montana A, Li Volti G, Rapisarda V. Exposure to Toxic Heavy Metals Can Influence Homocysteine Metabolism? Antioxidants (Basel). 2019 Dec 28;9(1):30.