When scanning the ingredient list on your favorite foods, you might notice unfamiliar names like Amaranth E123, also known as Red No. 2.
While it may sound harmless, this synthetic dye has raised serious health concerns, making it one of the most harmful food additives to watch out for. At SmartEatingHabits.com, we’re committed to helping you make informed choices with our #LabelWise campaign—because knowing what’s in your food is the first step to better health.
What Is Amaranth E123 (Red No. 2)?

Amaranth E123 is a synthetic red dye used to enhance the color of food, drinks, and even cosmetics. Its vibrant red hue is particularly popular in processed foods, where it compensates for the lack of natural color caused by manufacturing.
Common Names to Identify:
- Amaranth
- Red No. 2
- CI Food Red 9
- FD&C Red No. 2 (in older products)
Where Is Amaranth E123 Found?
Amaranth E123 is commonly found in:
- Candy and sweets – Used to create appealing red and pink hues.
- Desserts – Found in flavored gelatin, ice creams, and puddings.
- Beverages – Added to fruit juices, sodas, and wine coolers.
- Processed foods – Found in jams, sauces, and pickles.
- Cosmetics and personal care products – Used in lipsticks and blushes.
Health Impacts of Amaranth E123
Amaranth E123 has been linked to several health concerns that make it one of the top 20 harmful additives.
While it was once a popular synthetic dye used in food, beverages, and cosmetics, mounting evidence of its adverse effects has led to its ban in several countries. Here’s a detailed look at the key health concerns associated with Amaranth E123:
1. Potential Carcinogenic Effects

One of the most alarming health risks linked to Amaranth E123 is its association with cancer. Studies conducted in the mid-20th century suggested that the dye may have carcinogenic properties, particularly in laboratory animals. Although direct evidence in humans remains inconclusive, the findings were significant enough for regulatory bodies like the United States Food and Drug Administration (FDA) to prohibit its use in food and drinks.
2. Allergic Reactions and Sensitivities
Some individuals may experience allergic reactions or hypersensitivity to Amaranth E123. Symptoms can include skin rashes, itching, and respiratory issues. For people with a history of food dye sensitivities, Amaranth E123 may exacerbate existing conditions, particularly in children and individuals with asthma.
3. Hyperactivity and Behavioral Changes in Children
Like other synthetic food dyes, Amaranth E123 has been implicated in contributing to hyperactivity and attention disorders in children. Though more research is needed to establish a direct link, studies have shown that artificial food colorings, including Amaranth, may negatively affect behavior in some children, particularly those with Attention Deficit Hyperactivity Disorder (ADHD).
4. Toxicity Concerns
Animal studies have raised concerns about the toxic effects of Amaranth E123, particularly on vital organs. Prolonged exposure to the dye in high doses has been linked to kidney and liver damage in animal models. While these doses exceed typical human consumption, the findings highlight the potential risks of regular exposure to the additive.
5. Impact on Fertility
Preliminary studies suggest that Amaranth E123 may negatively affect fertility. In animal experiments, the dye was associated with reduced reproductive capabilities, raising concerns about its long-term safety in humans. While more research is required, these findings further fuel the argument against its use.
Tips to Avoid Amaranth E123
- Read Labels Carefully
Look for names like “Amaranth,” “Red No. 2,” or “E123” on ingredient lists. Products with artificial colors often prominently list them. - Choose Clean Labels
Opt for products labeled “No Artificial Colors” or those using natural coloring agents like beet juice or paprika. - Shop Smart
Avoid highly processed foods and beverages where artificial dyes are commonly used. - Join the #LabelWise Movement
At SmartEatingHabits.com, our #LabelWise campaign educates consumers on the dangers of additives like Amaranth E123. Visit our Food Additives Index to learn more and make better choices for your family.
Support Cleaner Food Choices
Switching to a diet free of harmful additives starts with knowledge. By staying informed, you can protect your health and that of your loved ones. Amaranth E123 may make food look appealing, but the risks far outweigh the benefits.
Sources
- European Food Safety Authority (EFSA): Amaranth E123
- NCBI: Synthetic Food Dyes and Their Health Implications
- Healthline: Food Additives to Avoid