Astaxanthin is a natural pigment that accumulates in egg yolks. astaxanthin changed the color of egg yolks. We investigated the effects of astaxanthin supplementation on the egg quality, antioxidant capacity, and ovarian aging of aged laying hens.
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Astaxanthin, a powerful antioxidant known for its numerous health benefits, has been the subject of much discussion in the health and wellness community. A common question that arises is whether eggs are a good source of this beneficial compound. In this comprehensive blog, we'll delve deep into the topic, exploring various aspects of astaxanthin and its presence in eggs.
What is the best source of Astaxanthin?
Astaxanthin is a carotenoid, a natural pigment responsible for the vibrant red, orange, and yellow colors found in certain plants and animals. Some of the best sources of astaxanthin include:
1. Microalgae: The primary producer of astaxanthin is the microalga Haematococcus Pluvialis. This microalga is the most concentrated natural source of astaxanthin and is commonly used to produce astaxanthin supplements.
2. Seafood: Salmon, trout, krill, shrimp, and crab are all good sources of astaxanthin, as they consume microalgae as part of their diet. Astaxanthin is responsible for the pinkish-red color of their flesh.
3. Wild birds: Some birds, such as flamingos, get their pink color from astaxanthin in their diet, which includes shrimp and other crustaceans.
It's important to note that while astaxanthin is present in a variety of sources, its concentration varies significantly. Microalgae supplements are the most potent source, whereas dietary sources like seafood provide lower concentrations.
Nutritional value of eggs with Astaxanthin
It is important to note that the nutritional value of eggs can vary depending on various factors, including the hen's diet and overall health. However, the table below provides an approximation of the nutritional value of eggs with astaxanthin. Keep in mind that the concentration of astaxanthin in eggs is typically low, and the other nutrients listed are not significantly affected by the presence of astaxanthin:
| Nutrient | Amount per 100g (approx.) |
|---|---|
| Energy | 147 kcal |
| Protein | 12.6 g |
| Total Fat | 9.5 g |
| - Saturated Fat | 3.1 g |
| - Monounsaturated Fat | 3.7 g |
| - Polyunsaturated Fat | 2.0 g |
| Cholesterol | 372 mg |
| Carbohydrates | 0.7 g |
| - Sugars | 0.4 g |
| Dietary Fiber | 0 g |
| Astaxanthin | Trace amounts (variable) |
| Vitamin A | 160 μg (approx.) |
| Vitamin D | 2.0 μg |
| Vitamin E | 1.0 mg |
| Vitamin K | 0.3 μg |
| Thiamin (Vitamin B1) | 0.06 mg |
| Riboflavin (Vitamin B2) | 0.5 mg |
| Niacin (Vitamin B3) | 0.1 mg |
| Vitamin B6 | 0.1 mg |
| Folate (Vitamin B9) | 47 μg |
| Vitamin B12 | 1.1 μg |
| Pantothenic Acid (Vitamin B5) | 1.4 mg |
| Choline | 251 mg |
| Calcium | 50 mg |
| Iron | 1.8 mg |
| Magnesium | 12 mg |
| Phosphorus | 198 mg |
| Potassium | 138 mg |
| Sodium | 140 mg |
| Zinc | 1.3 mg |
| Copper | 0.1 mg |
| Manganese | 0.03 mg |
| Selenium | 31.7 μg |
How much Astaxanthin is in eggs
Astaxanthin was the main pigment in the eggs with concentrations ranging between 0.89 and 22.33 μg mg−1 of egg dry biomass. Astaxanthin in eggs.
The presence of astaxanthin in eggs is primarily determined by the hen's diet. If the hen consumes feed that is rich in astaxanthin, such as krill meal or astaxanthin-enriched feed, the concentration of astaxanthin in the egg yolk will be higher. However, even in these cases, the concentration remains relatively low compared to other sources.
What is the benefit of an Astaxanthin egg?
Eggs with higher astaxanthin content can potentially offer some health benefits due to the antioxidant properties of astaxanthin. Some potential benefits include:
1. Reduced oxidative stress: Astaxanthin is known for its strong antioxidant properties, which help combat oxidative stress in the body. This can lead to reduced inflammation and a lower risk of chronic diseases.
2. Improved eye health: Astaxanth anything has been shown to protect the eyes from damage caused by ultraviolet (UV) radiation and oxidative stress, which can contribute to age-related macular degeneration and other eye disorders.
3. Enhanced skin health: Astaxanthin can help maintain skin elasticity, hydration, and overall skin health. Its antioxidant properties may also help protect the skin from damage caused by UV radiation and environmental pollutants.
4. Improved heart health: Some studies suggest that astaxanthin can improve heart health by reducing inflammation and oxidative stress, which are major contributors to heart disease.
Does egg yolk increase creatinine
Egg yolk contains a moderate amount of protein, and consuming high amounts of protein can lead to an increase in creatinine levels. Creatinine is a waste product formed during the normal breakdown of muscle tissue and is eliminated from the body through the kidneys. However, the protein content in egg yolks is unlikely to cause a significant increase in creatinine levels for most individuals.
Does egg yolk increase estrogen
Egg yolks do not directly increase estrogen levels in the body. However, they contain a compound called choline, which has been shown to have some impact on estrogen production. Choline is an essential nutrient involved in various metabolic processes, including the synthesis of neurotransmitters and cell-membrane components.
How to get red egg yolks？
To get red egg yolks, you need to ensure that the hens laying the eggs are consuming a diet rich in carotenoids, such as astaxanthin. Some methods to achieve this include:
1. Adding astaxanthin-rich ingredients to the feed: This can include ingredients like krill meal, shrimp shells, or microalgae. These ingredients will help increase the astaxanthin content in the hen's diet, resulting in redder yolks.
2. Offering natural sources of carotenoids: Providing hens with access to green leafy vegetables and other natural sources of carotenoids can also contribute to redder egg yolks.
Why do eggs have red yolks?
Eggs can have red yolks when the hens that lay them consume a diet rich in carotenoids, such as astaxanthin. Carotenoids are natural pigments found in various plants and animals, and they are responsible for the red, orange, and yellow hues in egg yolks and other foods. The presence of these carotenoids in the hen's diet is transferred to the egg yolk, resulting in a more vibrant color.
Some factors that can contribute to red egg yolks include:
- Diet: The type of feed given to the hens plays a significant role in determining the color of the yolks. Feeds that are rich in carotenoids like astaxanthin, lutein, and zeaxanthin will result in redder yolks. Ingredients like krill meal, shrimp shells, and microalgae are excellent sources of these carotenoids.
- Free-range hens: Hens that are allowed to forage freely outdoors are more likely to have access to natural sources of carotenoids, such as green leafy vegetables and insects. This can also contribute to redder egg yolks.
It is essential to note that while red yolks may indicate the presence of certain beneficial carotenoids, the overall nutritional value of an egg is influenced by many factors. These factors include the hen's diet, genetics, and overall health, and it is not solely determined by yolk color. In general, consuming a balanced diet that includes a variety of nutrient-rich foods is the best approach to ensuring optimal nutrition.
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References:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6025362/
https://www.foodnavigator-asia.com/Article/2021/05/20/Nu-approach-Egg-firm-Nuyolk-plans-clinical-study-to-validate-health-claims-of-astaxanthin-fortification
