Asparagus: Spring Spear Loaded with Vitamin K, Folate & Prebiotic Fiber
Just 5 spears (90 g) give 20 kcal, 60 % DV vitamin K and natural inulin that feeds good gut bacteria.
What Is Asparagus?
Asparagus (*Asparagus officinalis*) is a perennial spear harvested in early spring. Its tender tips deliver grassy-sweet flavour and a snap that signals the season’s change.
Varieties & Seasonality
- **Green**: sun-grown; highest chlorophyll.
- **White**: grown under soil mounds; milder, less bitter.
- **Purple**: sweet, richer in anthocyanins.
Season peaks **March → June** in temperate zones.
Nutrition per 100 g (steamed)
|Calories|Protein|Fat|Carbs|Fiber|Vit K|Folate|Vit C|Potassium|
|---|---|---|---|---|---|---|---|---|
|22 kcal|2.4 g|0.2 g|4.1 g|2.1 g|60 % DV|15 % DV|12 % DV|6 % DV|
Health Benefits
- **Vitamin K1** supports bone mineralisation & blood clotting.
- **Folate (B9)** key for DNA synthesis—important in pregnancy.
- Contains **inulin** & resistant starch → prebiotic fuel.
- Rich in **glutathione & rutin** for antioxidant defense.
Drawbacks & Oddities
- Sulfur compounds create classic **“asparagus pee”**—harmless.
- High vitamin K may interact with warfarin; monitor intake.
- Woody ends can be stringy—trim or peel 5 cm from base.
Preparation Basics
- Snap where spear naturally breaks → toughest part.
- Peel thick stalks (white/purple) with veggie peeler.
- Blanch 2 min in salted water to set colour before grilling or sautéing.
Tasty Cooking Methods
- **Roast** 12 min @ 220 °C with olive oil & lemon zest.
- **Steam** 4 min then dress with miso-tahini.
- **Grill** spears 2 min a side for smoky char.
- Stir-fry sliced stalks with garlic & chili for 90 seconds.
Pairings & Recipe Ideas
- Classic with **eggs**: poached egg + spears.
- Wrap with **prosciutto** or smoked tofu strips.
- Toss into **risotto** at last 3 min.
- Blend into chilled **asparagus-pea soup**.
Buying & Storage Tips
- Choose tight, closed tips; avoid limp stalks.
- Stand upright in 2 cm water, loosely covered, fridge → **5 days**.
- Freeze blanched pieces 8 months for soups.
- 1. Asparagus