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Eating for good mental health and minimising dangerous metal exposure


Mental health has been a hot topic in the news for some time. Every year approximately one in four people in the UK will experience a mental health problem. In England alone, one in six people report experiencing a common mental health problem (such as anxiety and depression) in any given week.

Nutrition plays an important role in keeping the brain functioning properly. As well as eating the right foods, it’s important to avoid ingesting dangerous metals, like mercury, that can affect the brain and nervous system. Taking a preventative approach is good practice.

How people become exposed to mercury and heavy metals

Mercury is widely used in products such as batteries, paints and thermometers. But the inorganic salts it contains are corrosive and highly damaging to our bodies, including our brains. Fish, normally considered to be a healthy food choice is, unfortunately, a typical way of becoming exposed to mercury. Certain types, such as mackerel and swordfish can contain high levels and may be best avoided or purchased from an organic store. If you’re not taking any additional nutrients other than your food, it may be advisable to add in a few good supplements such as a clean omega 3.

Other ways of becoming exposed to mercury can be through a glass thermostat. Of course, children might put batteries in their mouths!

How Mercury affects the Body

Mercury kills brain neurons, the cells that conduct nervous impulses. Toxic heavy metals are present in the air we breathe, water, soil and food supply. Chronic low levels of exposure can lead to issues such as aggressive behaviour, depression, memory loss, irritability and many more. The brain is an incredibly vulnerable organ and taking steps to protect it is of utmost importance.

The key question is, what can we do to minimise the decline in health?

How to support the brain with a natural approach

The flow of blood to the brain delivers oxygen and nutrients to the brain cells, which is an important function and supports our learning, thinking and memory. Lack of oxygen to the brain leads to cerebral hypoxia, destroying brain tissue and characterising conditions such as Alzheimer’s and vascular disease.

Feeding the brain good nutrients

  • Magnesium is nature’s natural relaxant, helping arterial flow to the brain
  • Omega-3 essential fatty acids also play an important role in blood flow to the brain, and are a simple yet safe and effective way to support cognitive function.
  • Ginkgo biloba herb has been used to help and prevent cognitive decline.
  • Green tea is a great antioxidant that supports reducing oxidative damage. The neuroprotective effects of the theanine contained in green tea are also a focus of considerable attention.
  • Turmeric contains curcuminoids, a great antioxidant including an anti-inflammatory and cognitive memory enhancer. Curcumin has a broad cytokine suppressive anti-inflammatory action. Cytokines are cell-signalling molecules that aid cell to cell communication in immune responses towards sites of inflammation, infection or trauma.
  •  Folate and vitamin B12 are both required for the methylation of homocysteine (a common amino acid in the blood). A deficiency in these can cause neurological disturbances, such as depression and dementia, and the neurotoxic effect of homocysteine may play a role in these disturbances.
  •  Saffron also has the potential to enhance mental health through its antidepressant properties. In a six-week trial, at a dosage of 30 mg/ day, extracts of saffron stigma were as effective as fluoxetine (20 mg/day) for the treatment of mild-to moderate depression (see reference below).

Reference: Noorbala AA, Akhondzadeh S, Tahmacebi-Pour N, Jamshidi AH. 2005. Hydroalcoholic extract of Crocus sativus L. versus fluoxetine in the treatment of mild to moderate depression: a doubleblind, randomized pilot trial. J Ethnopharmacol 97: 281–284.

Food that nourishes the brain

The brain is a fatty organ and therefore requires good fats. Providing it with a well-balanced, essential fatty acid complex, is important. Good sources are clean fish, nuts, avocados and olive oil.

Try to avoid empty calories from refined foods, such as white breads, sugar and fizzy drinks.

Consume good lean proteins, as these are the building blocks of our existence. Good proteins are our lean meats.

Legumes are also high in fibre (lentils, bean and peas), fish, nuts and seeds.

Try cutting down on caffeine as this can cause anxiety and depression and disturbed sleep. Caffeine is in: coca cola, coffee, chocolate, and other manufactured energy drinks.

Feed the brain all the goodness it needs and you will certainly help your mental health.

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Alzheimer’s the preventative approach


Alzheimer’s disease is the most common type of dementia and there are 850.000 with this disease in the UK.  The numbers are set to rise to over 1 million by 2025 and by 2051 it will rise to 2 million (facts taken from the Alzheimer’s society)

Our brain is the command centre of everything and keeping this healthy is imperative.  There are things we can do to keep the brain healthy and correctly nourished.

Preventative Foods for Alzheimer's

What can we use as a preventative, or to help support and heal.   DHA, is a component of the omega 3 fatty acids which can slow down the progression of Alzheimer’s and by eating or including things like eggs, wild salmon which is a good oily fish, tuna steaks, soaked walnuts and sea vegetables are also a good source of whole food which contain good sources of minerals.

Including raw butter, why? Because when you think about it, breast milk is around 50% of raw fat.  This type of produce in raw form, is far better that anything homogenised.  There are some sites that show you how to make raw butter, check out YouTube.


Consider keeping a healthy weight and do some natural exercise, like walking to a corner shop instead of driving, taking up a hobby that you may enjoy doing, like salsa dancing, swimming, things that give you pleasure, just as long as you don’t lead a sedentary lifestyle day in and day out.

Toxic Metals

Aluminium has also been lined with Alzheimer’s. Doctors have found concentration of aluminium in the brains of people who have died of this disease, and minimising things like aluminium cookware, foil, toothpaste’s, buffered aspirin, antacids and antiperspirants, these all contain aluminium.  Try to minimise the use of these products.  For example, instead of using foil use grease proof paper, use stainless steel instead of aluminium etc.

Mercury is another metal we have exposure to, for example amalgam fillings, these leek over time and may be a factor of neurological damage.  If you eat fish, make sure it is not contaminated.

Other Helpful Natural Tips

Detoxifying the body helps to rid it of mercury, for example, taking a good antioxidant, taking a good omega 3. Dark fruit and vegetables are also good when detoxing.  Eating good nutrient dense food is also helpful, like avocado, asparagus, watermelon, lentils, hemp, flax seeds and chia seeds.

Having a colonic is good now and again, but not on a regular basis, I’m a firm believer of detoxing, and giving the body what it needs, to support the immune system, are all good practices.  Having a colonic once or twice a year should be enough.

I always recommend my clients eat fermented foods when appropriate. It also supports the body’s natural defences and gut health.

Sugar is something most people battle to give up, because it makes food taste more appealing.  Alzheimer’s has been dubbed “type 3 diabetes” because Insulin resistance compromises the brain, .  Sugar and glucose sent to the brain can damage healthy brain tissue. Eating excess sugar also cuts the amount of oxygen the blood carries around the body, hence, less oxygen to the brain.

Most of us enjoy a little bit of sugar but others are addicted to it, you can take native elements chromium, it’s a good food state supplement, to help and support blood sugar and curve those cravings.

 Adding cinnamon, or a little apple sauce in your tea/coffee or breakfast, may help you gradually cut down on your sugar intake.

Please do share my blog with someone who may find it helpful!