Brenda Khan
There are many reasons why eyes may change colour, including age, disease, medication, and trauma. Some people believe that diet can also cause eyes to change colour. A raw vegan diet, for example, is thought to bring about a change in eye colour. However, there is no scientific evidence to support this claim. Eye colour is determined by the amount of melanin in the iris, and there is no known way to change the amount of melanin in the iris through diet or supplements.
| Characteristics | Values |
|---|---|
| Can diet change iris color? | There is no scientific evidence to support the claim that eye color can change due to diet. |
| Iris color change due to age | Iris color can change with age, especially in babies and infants. |
| Iris color change due to emotions | Certain emotions can change the size of your pupil and the iris color. |
| Iris color change due to clothing and makeup | The colors from your clothing or makeup may interact with the light reflected by your irises, making your eyes appear to change color. |
| Iris color change due to lighting conditions | Lighting conditions can create the illusion of temporary changes in eye color. |
| Iris color change due to pupil dilation | Changes in pupil dilation can create the illusion of temporary changes in eye color. |
| Iris color change due to disease | Eye color can change to a yellowish or greenish shade when you are unwell or if you have an eye disease. |
| Iris color change due to medication | Glaucoma medication can affect the color of the eyes. |
| Iris color change due to injury or infection | Loss of pigment from the back of the iris can occur due to injury or infection. |
| Iris color change due to high cholesterol | High cholesterol can cause a white or light-colored ring around the eyes. |
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What You'll Learn
- Iris colour change due to diet is scientifically unproven
- Malnutrition can cause eye colour change by making the body vulnerable to infections
- Emotional states can cause pupil size changes, altering iris colour
- A raw vegan diet can cause eyes to change colour, according to some
- Eye colour changes may be caused by factors other than diet, such as lighting conditions
Iris colour change due to diet is scientifically unproven
While some people claim that their eye colour has changed after consuming a raw vegan diet or detox, there is no scientific evidence to support this. The colour of the iris is determined by the amount and distribution of a pigment called melanin, which is influenced by multiple genes. While diet can play a crucial role in eye health, there is no known way to change the amount of melanin in the iris through diet or supplements.
Iridologists—experts in the study of the iris—are also sceptical about the idea that eye colour changes with diet. One iridologist called the idea a "misconception" and a "scientific impossibility". Another iridologist stated that while the eyes are still changing in a person's late teens to early 20s, by the time a person reaches adulthood, their eye colour remains stable throughout their lifetime.
It is important to note that eye colour can appear to change due to various factors such as lighting conditions, the scattering of light in the iris, pupil dilation, clothing, and makeup. Additionally, certain eye diseases and conditions, such as high cholesterol, can cause changes in eye colour. For example, a build-up of cholesterol can result in a white or light-coloured ring around the eyes. Malnutrition can also make the body more vulnerable to infections and diseases that may affect the eyes and cause changes in eye colour. However, these changes are typically not permanent and do not alter the underlying genetic makeup or pigmentation of the iris.
While it is possible to improve eye health through diet and supplements, there is no scientific evidence to support the claim that eye colour can be permanently changed through diet alone. The perception of eye colour change due to diet may be influenced by individual variations in eye pigmentation, lighting conditions, and other factors.
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Malnutrition can cause eye colour change by making the body vulnerable to infections
While there is no direct link between malnutrition and a change in eye colour, malnutrition can compromise the immune system, making the body vulnerable to infections and diseases that may affect the eyes.
Malnutrition is caused by an inadequate intake of all major nutrients, and infectious diseases are often also present in malnourished individuals, especially young children. This is because malnutrition can suppress immune function, making the body more susceptible to infections. In turn, these infections can cause a loss of pigment from the back of the iris, resulting in a lighter eye colour. For example, eye infections can lead to scarring of the cornea, which can make a dark-coloured iris appear blue, although the pigmentation itself remains unchanged.
Additionally, malnutrition can cause a lack of vitamins and minerals, which can affect how the irises reflect light, giving the appearance of a different eye colour. This is because the amount of pigment in the iris determines how light interacts with it. If there is very little pigment, the eyes will appear blue due to the light interacting with the natural greyish colour of the iris fibres. With greater amounts of pigment, the eyes will appear green or hazel, and a dense concentration of pigment results in deep brown eyes.
It is important to note that while diet can influence eye colour, it is typically not through malnutrition. For example, consuming spinach, which is rich in iron, can make the eyes look brighter and younger. Similarly, eating different types of nuts can gradually lighten eye colour.
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Emotional states can cause pupil size changes, altering iris colour
The autonomic nervous system manages the continuous tuning of pupil size, along with other involuntary functions such as heart rate and perspiration. The autonomic nervous system also dictates the movement of the iris to regulate the amount of light that enters the eye. The iris is made of two types of muscle: a ring of sphincter muscles that encircle and constrict the pupil, and a set of dilator muscles that can expand the pupil. Stimulation of the autonomic nervous system's sympathetic branch, which triggers "fight or flight" responses when the body is under stress, induces pupil dilation.
In addition, pupil size and iris brightness interact to affect prosocial behaviour and affective responses. For example, people may develop the heuristic that interactants with dilated pupils are interested or excited by the ongoing interaction, while those with constricted pupils are bored, tired, or uninterested. This is in line with the link between pupil dilation and pupil constriction and parasympathetic and sympathetic innervations, respectively.
Furthermore, certain emotions can change the size of the pupil and the iris colour. When people are happy, angry, or sad, their bodies release a hormone that causes their pupil size to change. When people are happy or angry, their eyes usually become more vibrant, and when they cry, their eyes take on a reddish colour, making their eyes appear brighter.
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A raw vegan diet can cause eyes to change colour, according to some
It is widely believed that a raw vegan diet can cause eyes to change colour. Many people have claimed that their eyes changed colour after adopting a raw vegan diet. One such person is Fully Raw Kristina, who claimed her eyes changed from brown to blue-green after she started eating only raw vegan food. Kristina's iridologist explained that each body part and organ is reflected in the eye, and that iridology can be used to observe internal problems.
Ondrej Matej, a vegan dietician and personal trainer, also claimed that his eyes changed colour after changing his diet. He asserted that his eyes changed from a very dark brown to a light brown with a slight green circle around them. Matej also mentioned that the dots in one's eyes, which indicate the health of one's organs, become clearer when one is healthier.
However, some iridologists are sceptical of the notion that a raw vegan diet can significantly alter eye colour. Yvonne Davis, an iridologist from London, stated that while eye colour can change slightly with age, it is generally stable by the late teens to early 20s. She suggested that the perceived colour change could be due to a reduction in toxins and an improvement in health rather than a direct result of dietary changes.
It is important to note that there are multiple factors that can influence eye colour, including emotions, clothing, makeup, lighting, and eye health. Additionally, certain eye diseases and conditions, such as glaucoma, can also cause changes in eye colour. While there may be some truth to the idea that diet can impact eye colour, it is not the sole factor, and other factors, including age, lifestyle, and individual biology, also play a role.
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Eye colour changes may be caused by factors other than diet, such as lighting conditions
While some sources claim that changes in diet can influence eye colour, there is little scientific evidence to support this. In reality, changes in eye colour are usually very minor and are often just tricks of the light. For example, the colours of clothing or makeup can interact with the light reflected by the irises, making it seem as though the eye colour itself has changed.
In rare cases, a person's eye colour can change due to factors such as illness, injury, or medication. For instance, high cholesterol can cause a build-up of cholesterol around the irises, resulting in a white or light-coloured ring around the eyes. Eye infections can lead to scarring of the cornea, which can make a dark-coloured iris appear blue, although the pigmentation itself remains unchanged.
Additionally, emotions can cause the pupil to change size and affect iris colour. When feeling happy, angry, or sad, the body releases hormones that cause the pupil to dilate, making the eyes appear more vibrant. Crying can also cause the eyes to take on a reddish hue, making them seem brighter.
It is also worth noting that eye colour can change due to natural processes, especially in babies and young children. Melanocytes, the cells that secrete melanin (the pigment that gives colour to the eyes), continue to secrete in the eyes for about six months after birth, causing the eye colour to darken. Similarly, exposure to sunlight triggers melanocytes to produce increasing amounts of pigment until the irises reach their adult colour by around age three.
In summary, while diet may play a role in eye health, there is limited evidence to suggest that it can significantly alter eye colour. Changes in eye colour are typically minor and influenced by factors such as lighting conditions, emotions, and natural developmental processes.
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Frequently asked questions
Yes, your iris colour can change as a result of your diet. A diet rich in vitamins, minerals and antioxidants can help protect your eyes and prevent certain diseases. For example, spinach is rich in iron, which can make your eyes look brighter and shine brighter.
Yes, in addition to diet, eye health can be influenced by factors such as genetics, age and environment. It is also important to visit an eye care professional for comprehensive eye exams and personalised recommendations on eye health.
Yes, emotions can affect your iris colour. When you are happy, angry or sad, your body releases a hormone that changes the size of your pupil and the colour of your iris.
Yes, eye colour can change due to several other reasons. For example, iris pigmentation can change due to injury, infection, or medication for glaucoma. Additionally, elements such as lighting conditions, clothing, or makeup can reflect into your eyes, altering the way your eyes reflect light and making them appear to change colour.
