Arginine Alpha-Ketoglutarate (AAKG) vs. Arginine Silicate Inositol Complex (Nitrosigine-type)
Among 1,304 on-market l-arginine products with an identifiable primary form, 38.6% use Arginine Alpha-Ketoglutarate (AAKG) (503 products) and 7.2% use Arginine Silicate Inositol Complex (Nitrosigine-type) (94).
| Arginine Alpha-Ketoglutarate (AAKG) | Arginine Silicate Inositol Complex (Nitrosigine-type) | |
|---|---|---|
| Quality tier | Unrated | Unrated |
| L-Arginine by weight | 70.5% | — |
| Share of market | 38.6% | 7.2% |
| On-market products | 503 | 94 |
| Median declared dose | 705 mg middle half: 705–1,322.98 | — |
| Most common brands | Cellucor, Universal, BSN | PS ProSupps, MuscleTech Performance Series, Axe & Sledge Supplements |
Doses are declared per serving in mg. “By weight” is the share of the ingredient that is the nutrient itself (e.g. elemental magnesium in a magnesium salt).
Why Arginine Alpha-Ketoglutarate (AAKG) is unrated
Tested in a controlled trial (4g three times daily x8 weeks improved 1RM bench press and Wingate peak power in 35 trained men) but only a time-release vs non-time-release comparison was run, not AAKG against other arginine forms.
Source: Campbell B et al. 2006, Nutrition 22(9):872-81, PMID 16928472
Why Arginine Silicate Inositol Complex (Nitrosigine-type) is unrated
Branded complex with its own small trials (e.g. acute vasodilation and cognition studies); no comparison against other arginine forms was verified.
Other l-arginine comparisons
- L-Arginine Hydrochloride vs. Arginine Alpha-Ketoglutarate (AAKG)
- L-Arginine Hydrochloride vs. Arginine Silicate Inositol Complex (Nitrosigine-type)
- L-Arginine Hydrochloride vs. Arginine Nitrate
- L-Arginine Hydrochloride vs. L-Arginine Pyroglutamate
- Arginine Alpha-Ketoglutarate (AAKG) vs. Arginine Nitrate
- Arginine Alpha-Ketoglutarate (AAKG) vs. L-Arginine Pyroglutamate
- Arginine Silicate Inositol Complex (Nitrosigine-type) vs. Arginine Nitrate
- Arginine Silicate Inositol Complex (Nitrosigine-type) vs. L-Arginine Pyroglutamate
- Arginine Nitrate vs. L-Arginine Pyroglutamate