
Phosphoric acid is a chemical substance that can be dangerous if inhaled, ingested, or if it comes into contact with skin and eyes. It is used as an additive in processed foods and drinks, and as a result, it is easy to exceed the recommended daily intake of phosphorus, which is 700 mg. Excess phosphorus can cause a range of negative health effects, including an increased risk of osteoporosis and heart disease, as well as kidney damage. However, there is no evidence to suggest that phosphoric acid causes muscle spasms.
| Characteristics | Values |
|---|---|
| Effect on human health | Can cause eye irritation, redness, pain, tearing, eyelid spasms, blurred vision and permanent damage. |
| Can cause severe irritation to the mucous membranes of the mouth, throat and oesophagus, leading to immediate pain and difficulty in swallowing (dysphagia). | |
| Phosphoric acid poisoning symptoms include a sour acrid taste, coughing, difficult breathing, conjunctivitis, severe gastrointestinal irritation, nausea, vomiting, bloody diarrhoea, severe abdominal pains, extreme thirst, convulsion, shock and even death through choking (asphyxia). | |
| Higher levels of phosphoric acid can cause a build-up of fluid in the lungs (pulmonary oedema) which may result in death. | |
| Can cause dermatitis with long-term skin exposure. | |
| Can cause bronchitis with repeated exposure. | |
| Can be absorbed into the body through inhalation or ingestion. | |
| Can be dangerous to those with chronic pulmonary disease or skin disease. | |
| Can be found in detergents, disinfectants, and food and drinks. | |
| Is used in the manufacture of superphosphate fertilisers, livestock feeds, phosphate salts, soaps, waxes, polishes and detergents. | |
| Is used as an anti-oxidant, flavour additive, and preservative in food. | |
| Is generally regarded as safe (GRAS) by the U.S. Food and Drug Administration (FDA). | |
| Excessive intake can cause harm to the heart, kidneys, and bones. | |
| Can lead to a decrease in bone density and osteoporosis. | |
| Can cause kidney stones, chronic kidney disease, and urine changes. | |
| Can be used to treat lead poisoning. |
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What You'll Learn

Phosphoric acid is added to many processed foods and drinks
Phosphoric acid is created by chemically treating phosphorus pentoxide, which is derived from the mineral phosphorus. Phosphorus is essential for the body to perform a wide range of functions, including muscle recovery after a workout. It is also needed to produce DNA and RNA, the genetic codes of living things. Phosphorus is found naturally in many foods, including meat, chicken, eggs, fish, and beans.
However, excessive phosphorus intake can lead to negative health effects. Phosphoric acid is dangerous if you come into direct contact with it, and it can also cause problems if you ingest too much. Studies suggest that excessive phosphorus intake can increase the risk of osteoporosis, heart disease, and kidney issues. It can also decrease calcium levels in the body, leading to bone loss.
Due to the prevalence of phosphoric acid in processed foods and drinks, some experts are concerned about the potential impact on people's health, particularly in the American diet. It is recommended that adults get about 700 mg of phosphorus per day, but it is easy to exceed this amount due to the high absorption rate of phosphoric acid from soda and processed foods.
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Excess phosphorus intake can cause heart issues
Phosphoric acid is generally regarded as safe by the U.S. Food and Drug Administration (FDA). However, excessive phosphorus intake can cause harm to your heart, kidneys, and bones. Phosphoric acid occurs naturally in foods such as beans, meat, chicken, eggs, and fish, and your body needs about 700 mg of phosphorus per day. Phosphoric acid is also often used as an additive in processed foods and sodas, which means that consumption of these items can lead to excessive phosphorus intake.
Phosphoric acid is a major source of acidity in soda and other soft drinks. It is added to impart a sharp taste and to inhibit the growth of mold and germs. Studies suggest that excessive phosphorus intake can put you at risk for osteoporosis and heart disease. Calcium and phosphorus work together to form and maintain healthy teeth and bones, and these minerals need to be balanced to be effective.
Consuming too much phosphorus can decrease the amount of calcium in your body, leading to bone loss and a decrease in bone density. This can increase your risk of developing osteoporosis. Additionally, excessive phosphorus intake can also affect your heart health. While the exact mechanism is not clear, it is believed that the imbalance of minerals and the resulting vitamin deficiencies may contribute to heart issues.
The negative impact of excessive phosphorus intake on heart health may be due to the disruption of mineral homeostasis in the body. Phosphorus overload can impede the body's ability to absorb and utilize essential nutrients such as calcium, iron, magnesium, and zinc. These vitamin deficiencies can have detrimental effects on cardiovascular function. For example, magnesium plays a crucial role in maintaining a healthy heart rhythm, and deficiencies can increase the risk of arrhythmias.
It is important to note that the risk of heart issues due to excessive phosphorus intake is likely to be higher in individuals who already have underlying heart conditions or other health issues. Additionally, the presence of other risk factors, such as a sedentary lifestyle or an unhealthy diet, may also contribute to the development of heart problems in individuals with high phosphorus intake. Therefore, it is crucial to maintain a balanced diet and consult with a healthcare professional to ensure adequate nutrient intake and maintain overall health.
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Phosphorus is important for muscle recovery
Phosphorus is an important mineral that plays a crucial role in muscle recovery. Firstly, phosphorus helps to maintain muscle function and supports the nervous system, which is essential for muscle movement and recovery. This is because phosphorus triggers the release of neurotransmitters, which are chemical messengers that carry signals from nerves to muscles, facilitating muscle contractions and recovery.
Secondly, phosphorus is a building block for healthy teeth and bones. Strong bones and teeth are crucial for overall bodily health, including muscle recovery. Calcium, the most abundant mineral in the body, works in conjunction with phosphorus to support skeletal and dental health. This partnership is vital, as a phosphorus deficiency can lead to a decrease in calcium levels, resulting in bone loss.
Thirdly, phosphorus is essential for energy production. It helps convert fats, carbohydrates, and proteins into energy, providing the fuel necessary for muscle recovery. Phosphorus also aids in balancing other vitamins and minerals in the body, ensuring optimal conditions for muscle repair and regeneration.
Additionally, phosphorus plays a role in DNA and RNA production, which are fundamental to cell growth and repair. This includes muscle cell regeneration, contributing to overall muscle recovery. While phosphorus deficiency is rare due to its presence in many foods, certain conditions, such as alcohol use disorder or diabetic ketoacidosis, can lead to hypophosphatemia.
It is worth noting that while phosphorus is crucial for muscle recovery, excessive intake can have negative consequences. High levels of phosphorus can lead to health issues such as osteoporosis and heart disease. Therefore, it is important to maintain a balanced diet and consult a healthcare professional before taking any supplements.
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Phosphoric acid can cause eye irritation and spasms
Phosphoric acid is a chemical substance that is commonly found in detergents and disinfectants. It is also used as an additive in processed foods and drinks, such as soda, to enhance flavour and inhibit the growth of mould and germs. While phosphoric acid is generally regarded as safe by the U.S. Food and Drug Administration (FDA), excessive exposure or ingestion can lead to several health issues.
One of the primary dangers of phosphoric acid is its potential for causing eye irritation and damage. Contact with the eyes can result in redness, pain, tearing, eyelid spasms, blurred vision, and even permanent damage. Therefore, it is crucial to handle phosphoric acid with caution and avoid direct contact with the eyes.
Inhalation of phosphoric acid fumes can also lead to respiratory problems, including irritation of the respiratory system, coughing, and difficulty breathing. Repeated exposure can cause bronchitis, characterised by a cough, phlegm, and shortness of breath. Ingesting phosphoric acid can result in severe gastrointestinal irritation, nausea, vomiting, and abdominal pain.
Additionally, excessive phosphorus intake, which can occur due to the consumption of phosphoric acid in processed foods and drinks, has been linked to negative health effects. Studies suggest that high phosphorus intake can increase the risk of osteoporosis and heart disease, and kidney issues. It is important to maintain a balanced intake of phosphorus and calcium to maintain healthy bones and overall well-being.
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Phosphoric acid is dangerous when inhaled
Phosphoric acid is a common industrial chemical used in the manufacture of fertilizers, detergents, soft drinks, and water treatment. It is also used in a variety of other industrial processes, such as metal rust proofing, tile cleaning, and the production of electric lights. The general public may be exposed to small quantities of phosphoric acid through the consumption of food and drinks, as well as through the use of some cleaning agents.
Following significant exposure to phosphoric acid mist, there is a risk of delayed-onset, non-cardiogenic pulmonary oedema, which may take up to 36 hours to develop. Higher phosphoric acid levels can cause a build-up of fluid in the lungs, which may result in death. Inhalation of phosphoric acid can also cause a sour acrid taste in the mouth, coughing, conjunctivitis, severe gastrointestinal irritation, nausea, vomiting, bloody diarrhoea, severe abdominal pains, extreme thirst, and even death through choking (asphyxia).
Due to the hazards posed by phosphoric acid, it is important to take precautions when handling it. Personal protective equipment (PPE), such as a certified vapor respirator, face shield, gloves, and boots, is recommended when handling this chemical. It should be stored in a cool, well-ventilated area, protected from moisture, and kept away from incompatible substances such as oxidizing agents, metals, combustible materials, and alkalis.
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Frequently asked questions
Phosphoric acid is generally regarded as safe by the U.S. Food and Drug Administration (FDA). However, excessive intake can lead to phosphorus overload, causing harm to the heart, kidneys, and bones. Phosphoric acid is also dangerous when coming into contact with or inhaled as a chemical substance.
Excessive phosphorus intake can increase the risk of osteoporosis, heart disease, and kidney issues. It can also lead to a decrease in bone density and calcium levels, impeding the body's ability to absorb essential nutrients like iron, magnesium, and zinc.
While there is no direct evidence linking phosphoric acid to muscle spasms, it can cause eyelid spasms when it comes into contact with the eyes. Additionally, excessive phosphorus intake can lead to muscle recovery issues after strenuous workouts.










































