Asparagus (Asparagus officinalis)

Botanical name
Asparagus officinalisAsparagus family (Asparagaceae)
is used
The young shootswhite underground, green grown in the light
The taste
Delicate, slightly bittersweetgreen, stronger and nuttier
Origin
Mediterranean region and Western Asiain Germany since the 16th century
Known for
Folate and diuretic effectand the typical odor in urine
season
April to June 24Stitches on St. John's Day

OriginThe royal vegetable

Drei Bündel grüner Spargel auf dunklem Grund

The Romans dried asparagus so they could boil it briefly out of season - one of the oldest recipes is recorded by Apicius.

Wild asparagus grows on the coasts of the Mediterranean and in Western Asia. The Greeks and Romans used it as a vegetable and as a remedy – especially for kidney and bladder ailments. In Germany, asparagus was cultivated in princely gardens from the 16th century onwards and remained a luxury reserved for the nobility for a long time.

White asparagus is a German passion: The shoots grow in mounds of earth in the dark, thus remaining pale and tender. Green asparagus grows in the light and develops chlorophyll. The harvest ends on June 24th, St. John's Day, so that the plant can gather enough strength for the following year. An old saying goes: "When the cherries are red, the asparagus is dead."„

To useWhat asparagus does for you

100g of asparagus contains only about 20 kcal and provides about 2g of protein. Dietary fiber, approximately 50 µg Folate, Vitamin C, vitamin E, and potassium. Green asparagus also contains plenty of vitamin C, vitamin E, and potassium. Vitamin K (around 40 µg) and carotenoids; white asparagus contains significantly less of these. A 500g serving already covers a large part of the daily folate requirement.

Asparagus has been considered since antiquity diuretic. The abundantly contained [substance] is involved. Aspartic acid and the amino acid derivative asparagine, as well as potassium and saponins. Commission E has given a positive assessment of asparagus root for flushing out the urinary tract in cases of inflammatory diseases and for preventing kidney stones – however, the evidence is based on anecdotal evidence, not on large-scale studies. Such an effect has hardly been investigated for the asparagus spears eaten on a plate.

Asparagus also contains fructans such as inulin, which are known as Prebiotics They feed the intestinal flora, as well as glutathione and flavonoids like rutin, especially found in green asparagus. The odor in urine occurs when the body... Asparagusic acid It breaks down into volatile sulfur compounds - not everyone produces it, and by no means everyone can smell it.

approximately 20 kcalper 100 g
approx. 50 µgFolate per 100 g
over 90 %water content
June 24St. John's Day - End of asparagus season

IngredientsThis is what's in asparagus

Asparagus contains water, asparagine and aspartic acid, asparagusic acid (containing sulfur), saponins (protodioscin, in the bitter ends), fructans, folate, vitamin C, vitamin E, B vitamins, potassium, phosphorus, glutathione, and in green asparagus, vitamin K, carotenoids, chlorophyll and flavonoids such as rutin.

The bitter saponins are found primarily in the lower ends and the peel. Asparagus with a purple tinge has also developed anthocyanins – it has a slightly stronger flavor.

Enhanced combinationsWhat makes asparagus stronger

Asparagus likes it simple: fresh, briefly cooked and with a little fat.

Fat

with butter or olive oil

Vitamins E and K require fat.

tuber

with new potatoes

The classic for the season.

Herbs

with Wild garlic or parsley

Add freshness and vitamin C.

acid

with lemon

Enhances the delicate aroma.

protein

with egg

Scrambled eggs or hollandaise sauce.

Seasonal partner

with Strawberries

In a salad with green asparagus.

What contradicts itselfIt's best to avoid these combinations.

gout

not Kilograms in the drawer

Contains moderate amounts of purines.

Wood

not with woody ends

Peel the white asparagus and cut off the ends.

storage

not Leave it lying open for days

It becomes woody; wrap it in a damp cloth.

Cook

not overcooking

Folate and vitamin C leach into the water.

South

not Discard the cooking water

Use for soup.

kidneys

not as a flush in case of heart or kidney failure

Then floating in the water is not advisable.

In the kitchenWhere he belongs

  • Asparagus with potatoesWith brown butter.
  • Asparagus soupMade from shells and ends.
  • Green asparagus from the panseared.
  • Asparagus saladWarm with vinaigrette.
  • Asparagus risottoWith lemon zest.
  • Oven-roasted asparagusIn a packet with butter.
  • Asparagus with scrambled eggsSimple spring food.
  • Asparagus and strawberry saladGreen, raw, with arugula.
  • Asparagus quicheWith wild garlic.
  • Grilled asparagusGreen, with olive oil.
Rule of thumb: Fresh asparagus squeaks when you rub the stalks together, and the cut ends are moist. Peel white asparagus thinly from the tip downwards, and green asparagus only in the lower third. Boil the peelings and ends in water – this makes the stock for the soup.

As a home remedyAsparagus stock for rinsing

Here's how it works

Asparagus broth

  1. Wash the peels and ends of 500g of white asparagus.
  2. Bring to a boil with 1 liter of water, a pinch of salt and a pinch of sugar.
  3. Simmer gently for 20 minutes and then strain.
  4. Drink the broth warm throughout the day or use it as a base for asparagus soup.
For what

Traditionally used to stimulate urination and as a light spring drink. The decoction provides fluids, potassium, and asparagine. No medicinal effect has been proven for the decoction made from the peels – Commission E only assessed the rhizome.

Crowd

One to two cups a day, along with plenty of water. Do not drink if you have fluid retention due to heart or kidney failure. Consult a doctor if you experience burning during urination, fever, or blood in your urine.

Ayurveda & TCMWhat the old systems say

Ayurveda

In Ayurveda, Shatavari (Asparagus racemosus), a related asparagus species, is a renowned tonic. Our cultivated asparagus is considered sweet, cooling, and slightly bitter – balancing Pitta and Vata.

Traditional Chinese Medicine

In Traditional Chinese Medicine (TCM), asparagus is described as cooling and sweet-bitter. It is said to clear heat, moisten yin, and promote urination. The root of the related species Asparagus cochinchinensis (Tian Men Dong) is a classic medicinal herb.

Warning noticesWhen you should be careful

Please note

  • Gout: Asparagus contains around 20 to 30 mg of purines per 100 g; this is moderate and, according to studies, vegetable-derived purines hardly increase the risk of gout - but not large amounts in the case of an acute gout attack.
  • Kidneys and heart: Do not use flushing therapy for edema caused by impaired heart or kidney function.
  • Blood thinners: Green asparagus is rich in vitamin K - eat it regularly if you are taking Marcumar.
  • Urine odor: harmless and over in about a day.
  • Allergy: Rare, primarily contact allergy in asparagus harvesters; cross-reaction with onions and leeks possible.

This page provides information and does not replace medical advice. If symptoms persist, please consult a doctor.

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SourcesWhat is this based on?

  1. Commission E: Monograph Asparagi rhizoma (asparagus rhizome). Federal Gazette, Federal Institute for Drugs and Medical Devices.
  2. Pelchat ML et al. Excretion and perception of a characteristic odor in urine after asparagus ingestion: a psychophysical and genetic study. Chemical Senses 2011; 36(1): 9–17.
  3. Markt SC et al. Sniffing out significant „Pee values“: genome wide association study of asparagus anosmia. BMJ 2016; 355: i6071.
  4. Choi HK et al. Purine-rich foods, dairy and protein intake, and the risk of taste in men. New England Journal of Medicine 2004; 350(11): 1093–1103.
  5. USDA FoodData Central: Asparagus, raw.