Astragalus and Lablab Flower Boiled Eggs: Support Spleen Health and Promote Vital Energy

Introduction to Medicinal Diet

Huangqi (Astragalus membranaceus) and Biandouhua (Lablab purpureus flower) boiled eggs is a traditional food preparation that combines the gentle actions of supporting spleen function and promoting comfort, as well as nourishing qi and maintaining a healthy exterior. This formula skillfully combines three common ingredients: Huangqi (Astragalus membranaceus), Biandouhua (Lablab purpureus flower), and eggs. Huangqi helps support middle qi and maintain a healthy exterior; Biandouhua aromatically supports dampness transformation and helps maintain a balanced middle region to support spleen function; eggs nourish yin and help maintain moisture balance, and support healthy qi and blood levels. Through their synergistic action, this food preparation provides gentle support for those feeling depleted. It is suitable as a restorative during the transition from spring to summer or during long summer (Changxia) when dampness is abundant. This food is popular in the Jiangnan and Lingnan regions, where locals commonly use it to help support appetite and promote a sense of well-being during warm, humid seasons.

The uniqueness of this dish lies in the simultaneous decoction of herbs that support healthy qi and aromatic ingredients that promote comfort, with the nourishing nature of eggs serving to moderate and slowly release the benefits. *Astragalus membranaceus* (Huangqi) exerts its sweet, warm, and upward-supporting action, while *Lablab purpureus* flower (Biandouhua) functions through its light, clear, and dispersing properties. The two work together—one supporting upward movement and one promoting dispersal, one nourishing and one transforming—to promote the smooth flow of qi and thus support the body’s natural balance. The egg, as a substance of blood and flesh, helps moderate the properties, making them more easily absorbed by the body. This soup has a clear, faintly yellow color, a subtle herbal aroma, and a balanced, mild taste. It serves as a choice for daily dietary nourishment and also as a supportive regimen for those recovering from illness with underlying weakness.

Efficacy of Medicated Diet

The main benefits of boiling eggs with Astragalus membranaceus (Astragalus) and Lablab purpureus flower (Hyacinth Bean Flower) focus on two aspects: supporting healthy qi and a healthy exterior, and promoting a comfortable spleen and digestive function. Astragalosides and astragalus polysaccharides can help support immune function, helping to maintain energy levels and a sense of well-being. Lablab purpureus flower, rich in volatile oils and flavonoids, helps promote comfortable digestion and supports normal bowel function; it is especially effective in helping to maintain comfort during warm, humid conditions. Eggs provide high-quality protein and lecithin, which help support tissue repair and overall vitality, making the benefits of this food preparation more sustained and gentle.

Overall, this food preparation is especially suitable for those looking to support their body’s natural balance, particularly when feeling both a lack of energy and a sense of heaviness. Long-term consumption can help maintain a healthy digestive and absorptive function, support a healthy complexion, and simultaneously help support a healthy immune response to seasonal changes. For modern individuals who may experience occasional digestive discomfort due to irregular diet and lack of exercise, this is a beneficial dietary support.

The Functions of Traditional Chinese Medicine

According to TCM theory, Huangqi (Astragalus membranaceus) enters the Spleen (SP) and Lung (LU) meridians. It is a key herb for supporting healthy qi, can help maintain healthy upward flow of energy, and support a healthy exterior. It is applicable for those feeling occasional fatigue and wanting to support digestive comfort. Biandouhua (Lablab purpureus flower) enters the Spleen (SP), Stomach (ST), and Large Intestine (LI) meridians. Its aromatic qi is adept at promoting comfort and harmonizing the Middle, awakening the Spleen and opening the Stomach. The *Bencao Gangmu* (Compendium of Materia Medica) records its traditional use for digestive comfort. Jidan (Egg) enters the Lung (LU), Spleen (SP), and Stomach (ST) meridians, nourishes yin, moistens dryness, enriches blood, and supports calmness. It can serve as a medicinal guide to direct the medicinal potency, and also prevents excessive warming from Huangqi that might create dryness. When combined, the three ingredients achieve a balanced effect of support and transformation, ascending and descending, matching the nature of the Spleen which “likes dryness and dislikes dampness.”

From the perspective of ascending, floating, descending, and sinking, *Astragalus membranaceus* (Astragalus) uplifts and disperses yang qi, *Lablab purpureus* flower (Lablab flower) disseminates and disperses dampness, while egg is sweet in flavor and moistening, with a descending nature. Together, they form a circulation of “ascending-dispersing-descending.” Astragalus helps support clear qi upward, Lablab flower helps resolve discomfort from the Middle Burner, and egg directs the effect downward. Thus, the qi mechanism of the Triple Burner becomes unobstructed, and dampness finds no place to hide. For those experiencing occasional imbalance due to digestive discomfort—such as a feeling of heat in the upper body but coolness in the lower body—this food preparation can help restore the pivotal function of the Middle Burner, allowing clarity and calmness to return to their proper places.

The Principle of Homology of Medicine and Food

It is worth noting that the flower of Lablab purpureus (hyacinth bean flower) possesses the most gently clearing and light comfort-promoting action among plants of the Fabaceae family. Unlike the strong action of Atractylodes lancea (Atractylodes) or the potent effect of Magnolia officinalis (Magnolia bark), it is especially suitable for the elderly, children, and those with delicate constitutions. For Astragalus membranaceus (Astragalus), the raw form is preferable to harness its ability to support a healthy exterior; if there is marked need for supporting healthy qi, it may be replaced as appropriate with honey-fried Astragalus. The egg should be boiled with the shell intact, so that calcium carbonate and trace mineral elements from the shell dissolve into the decoction. This not only enhances the mineral-supporting effect but also buffers the warm and drying nature of Astragalus, embodying the principle of “mutual complementation of yin and yang” in formula design.

Indicated Population

This food preparation is especially suitable for the following groups: first, individuals looking to support healthy digestive function, commonly experiencing occasional lack of appetite, postprandial fullness, or sticky feeling in the mouth. Consumption can help maintain healthy spleen and stomach function. Second, those feeling occasional fatigue or lack of energy, manifested as shortness of breath, tiredness, easy sweating, or wanting to support a healthy immune response. This is particularly appropriate for those who want to maintain a healthy exterior. Third, people experiencing a “sluggish” feeling during the hot and humid season, such as mental listlessness in summer, chest tightness with a bland taste in the mouth, a heavy sensation in the body, and lack of appetite. For them, the preparation can help promote comfort and support appetite.

Furthermore, urban populations who spend prolonged periods in air-conditioned environments, have insufficient physical activity, and consume a diet favoring raw, cold, and greasy-sweet foods may experience occasional feelings of internal discomfort with external chill. This manifests as stiffness in the shoulders and neck, a heavy sensation in the head, and afternoon leg puffiness. Consuming eggs cooked with *Astragalus membranaceus* (Milkvetch Root, Huangqi) and *Lablab purpureus* flower (Hyacinth Bean Flower, Biandouhua) two to three times per week can help support healthy circulation and fluid metabolism. For those in the convalescent phase after illness, once acute signs have subsided but the body’s energy has not yet fully recovered, this dietary recipe may also be used to gently support restoration. However, it should be used under the guidance of a professional practitioner to ensure suitability.

Contraindicated Populations

Although the properties of eggs boiled with Astragalus membranaceus (Astragalus) and Dolichos lablab flower (Hyacinth Bean flower) are mild, this preparation is not suitable for everyone. Those with a tendency toward excess heat conditions should avoid it: individuals experiencing acute signs of heat such as fever from common cold, sore throat, cough with yellow phlegm, may experience aggravation of heat, worsening their condition. Those with a tendency toward yin deficiency with signs of heat should also use with caution; this group typically manifests as heat in the palms and soles, dry mouth and throat, night sweats and flushed cheeks. The warming nature of Astragalus could further affect yin fluids, intensifying the imbalance.

The following conditions also fall under contraindications: individuals with allergies to eggs or legumes; those with a tendency toward damp-heat—manifesting as bitter taste and sticky sensation in the mouth, thick yellow coating on tongue—in whom internal dampness has already combined with heat, making the use of warming, supporting substances potentially counterproductive; pregnant and lactating women should use only under the guidance of a professional practitioner and must not self-administer for prolonged periods; during acute episodes of digestive upset or when experiencing fever of unknown origin, intake should also be suspended until recovery before resuming any supportive therapy. Additionally, due to the delicate nature of the spleen and stomach in infants under three years of age, this preparation is not recommended.

Ingredient ratio of the formula

Radix Astragali (Astragalus membranaceus, Milkvetch Root) 15g, Flos Lablab (Hyacinth Bean Flower) 10g, 2 eggs (approx. 100g), Fructus Jujubae (Jujube) 3 pieces (approx. 15g), Rhizoma Zingiberis Recens (Fresh Ginger) 2 slices (approx. 3g), and 800ml water. This dosage is for one person for one day; if preparing for two people, it can be doubled as appropriate. For the Astragalus root, the best quality has a pale yellow cross-section with a chrysanthemum-shaped center. For the Hyacinth Bean Flower, choose dried flower buds that have not fully bloomed, as they have a stronger aroma. For eggs, fresh free-range eggs are recommended, as they have a larger yolk proportion and higher nutritional value. For the jujubes, use whole dried jujubes after removing the pits, and for the ginger, old ginger is preferable, as it has a stronger effect of supporting warmth and comfort.

The ratio of *Astragalus membranaceus* (Astragalus root) to *Lablab purpureus* flower (Hyacinth Bean flower) in the formula is 3:2, a proportion refined through generations of traditional practice. Insufficient *Astragalus* fails to adequately support healthy qi, while excessive amounts may create warmth that affects moisture balance. Inadequate *Lablab purpureus* flower results in incomplete support for comfort, whereas overuse may disperse and consume healthy energy. The inclusion of *Ziziphus jujuba* (Chinese date) and *Zingiber officinale* (Ginger) serves to “harmonize the various herbs”: *Ziziphus*, sweet and warm, supports spleen function, nourishes and calms, thereby moderating the upward-supporting nature of *Astragalus*; *Zingiber*, acrid and warm, promotes comfort and helps maintain healthy digestion, thereby restraining the cooling and dispersing tendency of *Lablab purpureus* flower. The overall formulation is meticulous, with precise dosages, making it suitable for long-term regulation without causing imbalance.

Preparation Method

Step one: Quickly rinse the Astragalus root (Astragalus membranaceus), Lablab flower (Lablab purpureus), Jujube (Ziziphus jujuba, pitted), and fresh ginger (Zingiber officinale) slices once with clean water to remove surface dust. Note that the Lablab flower has a light and loose texture, so rinse gently to avoid loss of active constituents. Wipe the eggshell clean with a soft cloth, taking care not to crack it.

Step 2: Place a clay pot or ceramic pot on the stove, add the washed Astragali Radix (Astragalus root), Jujubae Fructus (Chinese jujube), and Zingiberis Rhizoma Recens (fresh ginger). Pour in 800 ml of water, bring to a boil over high heat, then reduce to low heat and simmer for 20 minutes to fully extract the active constituents from the Astragali Radix. Do not add the Flos Lablab Album (white hyacinth bean flower) at this stage, as prolonged boiling would cause its volatile oils to dissipate completely.

Step 3: Carefully place the eggs into the pot. Maintain a low heat and continue cooking for 10 minutes until the eggs are fully cooked. Then, gently scoop out the eggs with a soup spoon, immerse them in cold water for 1 minute, and after the shells have slightly cooled, tap them to create cracks. Return the eggs to the pot. This step allows the calcium from the eggshells to be better released into the broth, and also enables the flavors to properly permeate the egg whites.

Step 4: At this point, add the Dolichos Flower (Lablab Flower) into the pot, cover and simmer for 5 minutes, then turn off the heat. Do not overcook. Allow the soup to cool naturally to a warm temperature. Remove the egg, peel it, and eat together with the soup. You may also chew the jujube dates and ginger together. It is recommended to take this warm between 9:00 and 11:00 AM, when the Spleen Meridian (SP) is at its peak. During this time, the Spleen and Stomach’s function is strongest, allowing for optimal absorption of the benefits. Any leftover soup can be stored in the refrigerator. Reheat before drinking, but do not keep it overnight.

Tips for Consumption

Continuous use for 7 to 10 days constitutes one cycle, followed by a 3-to-5-day interval before the next cycle. This regimen helps maintain balance. During the period of use, if signs of warmth such as dry mouth or increased skin blemishes appear, reduce the amount of Huangqi (Astragalus membranaceus) to 10 g, or add Maidong (Ophiopogon japonicus) 6 g to the decoction to help balance its warm nature.

On the day of taking the herbal preparation, it is advisable to pair it with a light and easily digestible diet, and avoid consuming spicy, greasy, or raw-cold foods, as well as mung beans, radish, or other ingredients that may counteract the effect, so as not to diminish the benefits of Astragalus (Huang Qi). In addition, moderate physical activity is recommended during this period, aiming for light perspiration, which helps support the body’s natural processes.

When storing Dolichos flower (Lablab purpureus), it is important to seal the container tightly to protect against moisture and keep it in a cool, dry place. If the flower buds show discoloration, mold, or loss of aroma, they should no longer be used. For Astragalus root (Astragalus membranaceus), it is best to select freshly harvested material from the current year, as its potency is greatly reduced after being stored for more than two years. During periods of high humidity such as the sanfu days and the plum rain season, the amount of Dolichos flower can be appropriately increased to 12 grams to enhance its supporting effect. In autumn, when the Dryness prevails, the amount should be reduced to 8 grams to maintain balance.