Sevruga Hybrid (Imperial Sevruga)

Species:
Acipenser transmontanus (White sturgeon)

 

Originates from Area:
Native to North America (Pacific Northwest – California, Oregon, Washington, British Columbia); widely farmed in the U.S., Italy, and Uruguay

Key Characteristics:

Colour:

Dark grey to jet black; sometimes with olive or brown undertones

Texture:

Buttery and smooth, with medium firmness

Egg Size:

Medium to large (~2.8–3.3 mm); similar to high-end Ossetra

Source:

Exclusively aquacultured due to species protection in the wild

Flavour Profile:

Mild, creamy, and nutty with a clean finish; low in fishiness

Price Range:

~$2,000–$4,000 per kg (popular premium alternative to Beluga/Ossetra)

Grades Available:

Grade 1: Consistent, firm texture, dark lustre

Grade 2: Softer or slightly variable appearance

Marketed as: “Royal”, “Classic”, “Select” depending on producer

Best Pairing (Drinks):

Dry sparkling wines, Sauvignon Blanc, neutral vodka

Best Pairing (Foods):

Crème fraîche on toast, poached eggs, roasted root vegetables

Nutritional Breakdown (Per 100g White Sturgeon Caviar):
  • Calories: ~250–265 kcal
  • Protein: ~25–28 g
  • Fat: ~17–20 g
    • Omega-3 (EPA + DHA): ~3–5 g
    • Saturated fat: ~4 g
  • Cholesterol: ~420–440 mg
  • Carbohydrates: ~1–2 g
  • Sodium: ~1400–1700 mg
  • Micronutrients:
    • Vitamin B12: Very high (>200% RDA per 100g)
    • Choline: Supports brain signaling and muscle activation
    • Selenium, Zinc, Iron, Magnesium: High levels
    • Vitamin D & A: Moderate content

Cognitive-Performance Relevance (Sport & Mental Endurance):

✅ Omega-3 Fatty Acids (EPA & DHA)
• Critical for maintaining brain fluidity, supporting reaction time and reducing central fatigue
• Help regulate mood, attention, and cognitive sharpness in extended training or competition

✅ Vitamin B12 + Choline
• Work synergistically for neuromuscular transmission, motor learning, and memory encoding
• Support central nervous system repair and neuroprotective processes

✅ High-Quality Protein
• Delivers essential amino acids (e.g., tyrosine, tryptophan, lysine) for neurotransmitter synthesis and cognitive plasticity
• Supports lean mass retention during intense physical demand

✅ Micronutrients (Zinc, Selenium, Iron)
• Key for focus, energy production, and antioxidant protection
• Iron aids oxygen delivery to the brain during endurance activities

⚠️ Notes for Athletes:
  • Sodium: Helps with electrolyte recovery post-exercise; monitor in hypertensive cases
  • Cholesterol: Present in high amounts but usually well-managed in trained individuals
  • White sturgeon caviar provides an excellent balance of mild flavor, affordability, and cognitive-performance nutrients — ideal for sustained training support and brain-focused recovery menus