What Your Physician Never Told You About: Mercury, Arsenic and Mold In Our Food Supply
- Jun 1
- 8 min read
If you've been struggling with weight loss resistance, fatigue, brain fog, allergies, asthma, digestive issues, hormone imbalances, or chronic inflammation, there's an important conversation we need to have.
Most people focus on calories, carbohydrates, protein, sugar, or whether they are eating enough fruits and vegetables. While those things matter, they may not tell the whole story.
Increasingly, research is looking at another factor: hidden toxins in food and contaminants that make their way into our food supply.
I'm talking about mercury, arsenic, mold toxins, microplastics, pesticides, pollutants, additives, preservatives, and other substances that may place additional stress on the body, immune system, hormones, liver, metabolism, and overall health.
These exposures do not mean you should panic or throw away every food product in your pantry.
They do mean you should become a more informed consumer.
At Harmony With Food, our goal is never fear-mongering.
Our goal is education, awareness, and action.
As I often say:
Test. Don't Guess.
What Are Hidden Toxins in Food?
Hidden toxins in food are chemicals, contaminants, residues, pollutants, or naturally occurring substances that may be found in certain foods, beverages, or food products.
Some come from the environment.
Some come from processing.
Some come from packaging.
Some come from farming practices.
Some come from contamination during storage, manufacturing, or distribution.
Examples may include:
Mercury in certain fish
Arsenic in rice and rice-based products
Mold toxins in grains, peanuts, coffee, dried fruits, and spices
Microplastics in bottled water, seafood, salt, and air particles
Pesticide residues on fruits and vegetables
Artificial ingredients, additives, and preservatives in highly processed foods
Chemicals from plastic packaging or food storage containers
This does not mean every food is harmful or that you need to worry or obsess over the food in your pantry.
It does mean, however, that food safety, diet variety, label awareness, and testing matter.
The Hidden Link Between Allergies, Asthma, and Inflammation
Nearly 1 in 13 Americans has asthma, and symptoms often worsen during allergy season.
Many people assume that asthma and allergies are purely environmental problems, but nutrition and food exposure may play a larger role than most realize.
Research suggests that diets rich in fruits, vegetables, antioxidants, and omega-3 fatty acids may help support healthy inflammatory responses and lung function.
Foods rich in vitamin C, beta-carotene, and other antioxidants may help the body better manage oxidative stress that can contribute to respiratory symptoms.
This does not mean there is one magical food that cures asthma.
There isn't.
However, reducing inflammatory burden from multiple angles often produces meaningful improvements.
That's why we look beyond symptoms and ask:
What is driving inflammation?
What is overloading the immune system?
Could hidden toxins in food, allergens, contaminants, or chemical exposure be contributing to symptoms?
Are certain ingredients, additives, or food products creating reactions in the body?
For many people, symptoms are not caused by one thing. They are the result of many small exposures adding up over time.

Mercury: An Overlooked Toxic Burden
Mercury is a naturally occurring heavy metal, but human activity has significantly increased environmental exposure.
Large predatory fish tend to accumulate the highest levels, including:
Swordfish
King mackerel
Shark
Certain types of tuna
Mercury exposure is particularly concerning because it can affect:
Neurological function
Thyroid health
Energy production
Hormonal balance
Metabolism
The immune system
The body's ability to detoxify
According to information discussed on The Harmony With Food Show, approximately one in six women may have elevated mercury levels.
Many people have no idea they are carrying a significant toxic burden because conventional medical testing often does not evaluate heavy metal exposure.
This is one reason functional testing can be so valuable.
Fish can absolutely be part of a healthy diet. The key is being selective, understanding mercury levels, and choosing lower-risk sources more often.
Arsenic in Rice: The Problem Few People Talk About
Rice is often viewed as a healthy staple food.
However, rice naturally absorbs arsenic from soil and groundwater more readily than many other crops.
The FDA has acknowledged that arsenic can be found in:
Rice
Rice cereal
Rice milk
Rice cakes
Certain gluten-free products
Some protein bars
Other rice-based snacks and food products
Children may be especially vulnerable because rice-based foods are frequently introduced early in life.
Research has shown that infants and young children consuming rice products can have significantly higher arsenic exposure than adults.
This does not mean you have to quit eating rice.
It just means that moderation is key.
Consider These Practical Strategies
Rinse rice thoroughly before cooking.
Rotate grains instead of relying exclusively on rice.
Consider lower-arsenic varieties when available.
Avoid making rice-based foods the foundation of every meal.
Read labels on gluten-free products, snacks, cereals, and protein bars.
Vary your diet with beans, vegetables, mushrooms, fruits, and other natural whole foods.
Moderation and variety remain two of the best tools for reducing exposure to hidden toxins in food.
Mold Toxins: The Invisible Inflammers
One of the most overlooked topics in nutrition is mold exposure.
Certain molds produce compounds called mycotoxins, which can contaminate food crops.
The World Health Organization estimates that approximately 25% of global food crops may be affected by mycotoxin contamination.
Common foods that may contain mold toxins include:
Peanuts
Corn
Wheat
Coffee
Dried fruits
Certain spices
Some nuts and grains
For sensitive individuals, mold exposure may contribute to:
Headaches
Brain fog
Fatigue
Digestive issues
Immune dysfunction
Increased inflammation
Allergic reactions
Hormone problems
Unexplained symptoms
Some people are significantly more sensitive to mold than others, which is why individualized testing can be helpful when symptoms remain unexplained.
Again, this is not about eliminating every potentially contaminated food.
It's about understanding your body's unique response.
It is also about storing foods properly.
Nuts, grains, coffee, and dried goods should be kept in cool, dry environments to help reduce contamination risk.
Microplastics: The Newest Concern in Food and Health
One of the fastest-growing areas of environmental health research involves microplastics.
A 2024 study estimated that the average person may consume the equivalent of a credit card's worth of plastic each year.
Microplastics have been detected in:
Bottled water
Seafood
Salt
Produce
Air particles
Some packaged foods and beverages
Researchers are particularly interested in their potential role as endocrine disruptors.
These chemicals may interfere with:
Hormone signaling
Metabolism
Fertility
Thyroid function
Weight regulation
Inflammation
Cellular health
While much remains to be learned, reducing unnecessary plastic exposure is a reasonable step many families can take today.
You can start by using glass storage containers when possible, avoiding heating food in plastic, reducing bottled water consumption, and choosing fresh foods over heavily packaged food products when realistic.
The goal is not perfection.
The goal is awareness.
What Are Obesogens?
You may have heard the term obesogens recently.
Obesogens are environmental chemicals that may interfere with metabolism and promote fat storage.
Experts are studying how substances such as:
BPA
Certain pesticides
Heavy metals
Plastic-related chemicals
Pollutants
Additives and residues in some food products may influence:
Appetite regulation
Blood sugar control
Hormone balance
Weight management
Inflammation
The body's ability to burn fat efficiently
This helps explain why weight loss is not always as simple as "eat less and move more."
For some individuals, underlying inflammation, microbiome imbalances, hormone disruption, and toxic burden may be contributing factors.
This is especially important for people who feel like they are doing all the right things but still struggling with stubborn symptoms.
Why Food Labels Matter
Reading food labels is one of the simplest ways to become more aware of what you are consuming.
Many processed foods contain artificial ingredients, additives, preservatives, refined oils, added sugar, and chemical substances that may not support long-term health when consumed frequently.
This does not mean all packaged foods are bad.
It does mean consumers deserve clear information.
When reading labels, look for:
Shorter ingredient lists
Recognizable ingredients
Lower added sugar content
Fewer artificial additives and preservatives
Minimal processing
Organic options when appropriate and accessible
Products that are third-party tested when relevant
Organic foods can help reduce exposure to certain pesticide residues, but organic does not automatically mean perfect.
Natural does not always mean safe.
And a product labeled healthy may still contain ingredients that do not work well for your body.
This is why APPLIED knowledge is power.
Smart Choices Beat Fear Every Time
With all the fear-inspiring headlines about toxins, chemicals, contaminants, cancer risk, hormone disruption, heart disease, inflammation, and food safety, it's easy to become overwhelmed.
Please don't become stressed.
You have a dream and a health goal, and both of these are possible.
But it starts with recognizing that the goal is not perfection.
No one is perfect, but we can ALL become more aware and make different choices.
How so?
By incorporating small but practical steps into your daily living that will help you become the master over your own health.
For those of you that have made it this far, I want to say congratulations and invite you into the Harmony With Food Diet Do-Over program.
This self-paced course with give you the confidence you need to take real steps towards improving your health.
Choose Variety
Avoid eating the same foods every day. A varied diet can help reduce repeated exposure to the same contaminants while giving the body a wider range of nutrients.
Store Foods Properly
Keep nuts, grains, coffee, spices, and dried goods in cool, dry environments to reduce mold growth and contamination risk.
Be Selective About Fish
Favor lower-mercury seafood options and vary your seafood choices.
Limit Plastic Exposure
Use glass storage containers when possible. Avoid heating food in plastic. Reduce bottled water when you can.
Read Labels
Pay attention to ingredients, additives, preservatives, artificial substances, sugar, oils, and processing.
Rotate Grains
Do not rely only on rice or rice-based food products. Add variety with quinoa, oats, beans, vegetables, mushrooms, and other whole foods.
Use Trusted Resources
Tools like the Environmental Working Group can help consumers make more informed decisions about pesticides, food safety, and product choices.
Consider Testing
If you have persistent symptoms, testing may provide information that guessing cannot.
The Functional Nutrition Difference
At Harmony With Food, we don't believe in guessing or chasing pancea's that simply don't exist.
We believe in gathering data.
Many people spend years chasing symptoms with medications while never addressing potential root causes.
Through functional testing, we may evaluate factors such as:
Food sensitivities
Microbiome imbalances
Micronutrient deficiencies
Mold exposure
Heavy metals
Chemical exposure
Hormone imbalances
Other environmental toxic burdens
Every person is different.
What affects YOU may not affect another.
One person may react strongly to mold toxins.
Another may struggle with mercury levels.
Another may have issues with pesticides, additives, preservatives, or allergens.
Another may have inflammation driven by gut health, hormone imbalance, or nutrient deficiencies.
That's why personalized nutrition is so important because without it, your personal health remain the same as it always has been.
Final Thoughts on Hidden Toxins in Food
Mercury, arsenic, mold toxins, microplastics, pesticides, additives, preservatives, and other contaminants are real concerns, but they should not control your life.
Knowledge is powerful when applied.
When you understand where these exposures come from and how they may affect the body, you can make informed choices without becoming fearful.
Remember:
The goal is not to live in fear.
The goal is to live with confidence, balance, and better information.
If you're experiencing weight loss resistance, fatigue, digestive issues, allergies, asthma, brain fog, hormone imbalances, chronic inflammation, or other unexplained symptoms, it may be time to stop guessing and start investigating the root cause.
Because your health deserves more than a one-size-fits-all approach.
You have to be your own health advocate.
And you have to be proactive about your health.
If you've...
Gone as far as you can...
Tried following strangers' advice on social media and nothing has worked to your satisfaction ...
Been fed up with your symptoms for a while and they're affecting your ability to travel and work...
Decided that you're done putting your health at risk...
Consider...

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