Olimp AAKG 1250 Extreme Mega Caps

💉 3750mg of AAKG per daily dose — 2438mg pure L-arginine

At 3750mg of AAKG per 3-capsule daily dose, Olimp AAKG 1250 Extreme Mega Caps® provides a clinically relevant arginine load in the dose range studied in research on nitric oxide-mediated vasodilation and performance. The AAKG form provides 2438mg of pure L-arginine per dose — a higher bioavailability form than free-form L-arginine, as the alpha-ketoglutarate salt improves intestinal absorption and reduces the gastrointestinal discomfort sometimes associated with high-dose free-form arginine supplementation.

⚡ Nitric oxide (NO) production — the vascular pump mechanism

L-arginine is the direct substrate for nitric oxide synthase (NOS) — the enzyme responsible for producing nitric oxide in endothelial cells. Elevated circulating arginine from supplementation increases NO availability, which relaxes vascular smooth muscle and widens blood vessel diameter (vasodilation). The practical result during training is increased blood flow to active muscles — delivering more oxygen, glucose and amino acids to working tissue simultaneously, producing the characteristic muscle pump and supporting sustained training performance across multiple sets and longer sessions.

🔬 Creatine synthesis support — the explosive energy dimension

L-arginine is an indispensable precursor in the endogenous creatine biosynthesis pathway (arginine + glycine → guanidinoacetate → creatine). While this mechanism is secondary to the NO pathway for training performance, it represents an additional dimension of arginine's role in energy metabolism — particularly relevant for athletes who rely heavily on phosphocreatine for repeated explosive efforts (sprinting, jumping, heavy compound lifts).

💊 Mega Caps format — pharmaceutical-grade concentration

The Olimp Mega Caps format packs 1250mg of AAKG into a single capsule — significantly more than the 500 to 750mg typical of standard AAKG capsules. This means the full 3750mg daily dose requires only 3 capsules rather than 6 to 8, reducing the total daily capsule burden and improving compliance. The pharmaceutical-grade manufacturing at Olimp's own production facility (ISO, HACCP and GMP certified) ensures consistent active ingredient content per capsule.

🌿 Minimalist clean formula — 88% active ingredient

The formula contains 88% AAKG by weight — one of the highest active ingredient concentrations in a capsule supplement format. The remaining 12% is magnesium stearate (a standard pharmaceutical flow agent) and the gelatin capsule shell. No proprietary blend padding, no unnecessary additives, no colourings, no sweeteners. This transparency of formulation is a meaningful quality signal for athletes who want to verify exactly what they are consuming.

🎯 Goal guide

🏋️ Mass gain: 3 capsules/day pre-workout. Increased NO-mediated blood flow maximises nutrient delivery to muscle tissue under progressive overload.

🔥 Weight loss / cutting: 3 capsules/day. Supports training quality and pump during caloric restriction — maintaining training intensity when overall energy availability is reduced.

⚖️ Strength and endurance: 3 capsules/day. Pre-workout arginine loading for maximum vascular pump and sustained blood flow throughout longer training sessions.

Serving suggestion

Take 3 capsules per day with a large glass of water. Olimp recommends taking the capsules before training. Before use, consult a physician or dietician. Do not exceed the recommended daily dose. Not recommended for children, pregnant or breastfeeding women. Store in a cool, dry place away from children.

Best times to take it

🏋️ 30 to 60 minutes before training (primary recommendation)

The optimal pre-workout window: L-arginine plasma levels peak approximately 60 to 90 minutes after oral intake. Taking 3 capsules 30 to 60 minutes before training ensures peak arginine availability during the training session, maximising the NO-mediated vasodilation effect and the associated pump and blood flow benefits.

☀️ Morning on an empty stomach (alternative)

For athletes who train later in the day, taking AAKG in the morning on an empty stomach provides a sustained arginine loading effect. Arginine absorption is significantly more efficient in a fasted state — the absence of competing amino acids from a meal allows more complete intestinal uptake.

🌙 Before sleep (growth hormone support)

Research suggests that L-arginine stimulates growth hormone (GH) secretion, particularly when taken before sleep — a period when GH release is at its highest. Some athletes split their 3-capsule dose between pre-workout and pre-sleep for a dual training and recovery application.

Supply duration guide

Full ingredient list

L-arginine alpha-ketoglutarate (AAKG) (88%), anti-caking agent: magnesium salts of fatty acids (magnesium stearate); capsule: gelatin.

Three components. 88% active ingredient. No additives.

Key ingredient breakdown

Allergens

No major allergens declared. The capsule shell is made from gelatin — not suitable for vegetarians or vegans. Always refer to the current product label for the most up-to-date allergen information.

Product characteristics:

• 88% AAKG content per capsule
• 1250mg AAKG per capsule (Mega Caps format)
• 3750mg AAKG per daily dose (3 capsules)
• 2438mg pure L-arginine per daily dose
• Zero sugar, zero carbohydrates, zero fat
• Gelatin capsule — not suitable for vegetarians or vegans

Active ingredient content per serving

Nutritional values per capsule and per daily dose

Formats disponibles

Q1 — What is AAKG and how does it differ from plain L-arginine?

AAKG (arginine alpha-ketoglutarate) is a salt formed by combining L-arginine with alpha-ketoglutarate — a key intermediate in the Krebs cycle (cellular energy metabolism). The AAKG form offers two advantages over plain L-arginine. First, improved bioavailability: the alpha-ketoglutarate salt form is absorbed more efficiently through the intestinal wall and produces less gastrointestinal discomfort than equivalent doses of free-form L-arginine. Second, a dual functional mechanism: beyond the NO precursor role of the arginine component, the alpha-ketoglutarate component is a direct participant in the Krebs cycle and may contribute to energy metabolism during exercise. The net result is a more effective and better-tolerated arginine supplement for high-dose pre-workout use.

Q2 — What is the "Mega Caps" format and why does it matter?

Olimp's Mega Caps format is their proprietary large-capacity capsule format, designed to pack significantly more active ingredient per capsule than standard capsule sizes. At 1250mg of AAKG per capsule, each Mega Cap contains 1.7 to 2.5 times more active ingredient than conventional AAKG capsules (typically 500 to 750mg). This means the complete 3750mg daily dose requires only 3 capsules rather than 6 to 8 — a meaningful compliance improvement for athletes already taking multiple supplements. The pharmaceutical-grade Olimp manufacturing process ensures consistent fill weight and active ingredient content across every capsule.

Q3 — How does AAKG supplement relate to nitric oxide (NO) boosters and "pump" products?

AAKG is the foundational active ingredient in the pre-workout nitric oxide and pump supplement category. L-arginine is the direct substrate for nitric oxide synthase (NOS), and providing elevated circulating arginine from supplementation increases the enzymatic production of NO. This NO increase relaxes vascular smooth muscle, causing vasodilation — widening of blood vessels — that increases blood flow to active muscles during training. The subjective experience of this vasodilation is the muscle pump: the sensation of fullness and tightness in the muscles during and after a training set. Many commercial pre-workout products combine AAKG with L-citrulline (another NO precursor) for a compounded vasodilation effect.

Q4 — Can I combine Olimp AAKG with GSN Vaso Pump or other citrulline-based pre-workouts?

Yes. AAKG (arginine-based NO pathway) and L-citrulline (citrulline → arginine → NO pathway) work through the same biochemical mechanism but via different entry points, and their combination produces a compounded NO stimulus that is greater than either alone. GSN Vaso Pump already contains 8000mg of L-citrulline DL malate per serving. Adding Olimp AAKG provides direct arginine loading on top of the citrulline-derived arginine pool — a common and effective pre-workout combination for athletes maximising the pump effect. No interaction or safety concern between the two products.

Q5 — Which format should I choose — 120 or 300 capsules?

The formula is identical in both formats. The 120-capsule format (40-day supply at 3 caps/day) is appropriate for first-time users or athletes who want to rotate supplements between training blocks. The 300-capsule format (100-day supply) is significantly more economical per capsule and is the preferred choice for athletes who use AAKG consistently as part of their long-term supplement routine — at 3 capsules per day, 300 capsules represents approximately 3.5 months of uninterrupted supply.