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Those looking to add a high-dose amino acid combination to their training routine quickly encounter the limits of plain L-arginine – oral absorption is restricted by intestinal breakdown. nutri+ addresses this by combining L-arginine base from plant-based fermentation with L-citrulline DL-malate 2:1: both amino acids are precursors of nitric oxide (NO) in the body and are made available to the organism in a time-staggered manner through their distinct metabolic pathways. Made in Germany, independently lab-tested by GBA Group.
🔬NO precursorL-arginine & L-citrulline in nitric oxide metabolism
💪Pre-workoutAmino acid complex for active athletes
⚡SynergisticTime-staggered availability via two metabolic pathways
L-arginine is a semi-essential amino acid that the body can no longer synthesise in sufficient quantities during intense physical exertion, stress or with advancing age. In the body's metabolism, L-arginine serves as a direct precursor of nitric oxide (NO) – a signalling molecule that plays an important biochemical role in vascular smooth muscle. This vegan arginine capsule product from nutri+ uses exclusively L-arginine base from plant-based fermentation, a higher-grade form than the commonly used arginine HCL, which is often derived from animal raw materials.
L-citrulline DL-malate 2:1 complements L-arginine at a biochemical level: citrulline is converted to L-arginine in the kidneys via the urea cycle, bypassing the intestinal breakdown that limits the bioavailability of oral L-arginine alone. Because both amino acids follow distinct metabolic pathways, L-arginine becomes available to the body in a time-staggered manner – a biochemical advantage over taking either substance alone. Many comparable plant-based DHA EPA amino acid products use low-dose plain L-citrulline without this synergistic 2:1 DL-malate bond.
Recommended intake
8 capsules daily with sufficient liquid.
On training days: approx. 30–60 minutes before training.
On rest days: immediately after waking.
Daily serving: 2,750 mg L-arginine base + 3,000 mg L-citrulline DL-malate 2:1 (= 1,875 mg pure L-citrulline).
💡 Tip: Take the capsules with a large glass of water (at least 300 ml) – this helps absorption of both amino acids without interference from other foods.
lab-tested (GBA Group)made in GermanyIFS Food & GMPhigh-dose
Why L-arginine base from fermentation – and not arginine HCL?
Many lower-priced arginine products use arginine HCL, which is often derived from animal raw materials. nutri+ uses L-arginine base from plant-based fermentation instead – a process associated with vegan suitability and high purity. The free base form also contains no hydrochloric acid component, unlike HCL variants. Find more plant-based amino acid supplements in the Strengthening category on viterna.at.
Who is the L-Arginine L-Citrulline Mix particularly suitable for?
This combination of L-arginine and L-citrulline DL-malate is aimed at strength athletes and endurance athletes who want a high-dose, plant-based amino acid combination as part of their training routine. As both active ingredients come from plant sources and no flow agents such as magnesium stearate or silicon dioxide are used, the product is also suitable for those who value maximum purity in their food supplements. Discover more plant-based sports supplements under Metabolism & Energy.
Notices and storage
Food supplements are not a substitute for a balanced diet and the recommended daily dose should not be exceeded. A varied and balanced diet and a healthy lifestyle are important. Store in a cool, dry place, away from light and out of the reach of young children. After opening, store in a cool dry place. Protect from heat.
During pregnancy and breastfeeding, consult a doctor before use to clarify the appropriate dosage. If taking blood pressure medication or medicines for erectile dysfunction (e.g. PDE-5 inhibitors such as sildenafil) or if you have any cardiovascular conditions, consult a doctor before use, as L-arginine acts as an NO precursor and interactions with these substances are possible.
FAQ – Frequently asked questions about L-Arginine and L-Citrulline
L-arginine is absorbed relatively quickly after oral intake – the recommendation to take it 30–60 minutes before training is based on how rapidly the amino acid reaches the bloodstream. L-citrulline becomes available later, as it must first be converted to L-arginine in the kidneys. For a consistent amino acid level, regular daily intake is recommended, including on rest days.
On training days, take the 8 capsules approximately 30–60 minutes before your workout. On rest days, nutri+ recommends taking them immediately after waking on an empty stomach – so absorption is not affected by other food and your amino acid levels remain consistent throughout the day.
Three key differences: first, nutri+ uses L-arginine base from plant-based fermentation rather than the cheaper arginine HCL, which is sometimes derived from animal raw materials. Second, the product is independently tested by GBA Group (DAkkS-accredited) for heavy metals and microbiology. Third, it contains no flow agents such as magnesium stearate or silicon dioxide – only the declared active ingredients and the plant-based capsule shell.
Yes, L-arginine and L-citrulline are generally well-suited for combining with other sports supplements such as creatine, BCAAs or beta-alanine. However, if you are taking blood pressure medication or PDE-5 inhibitors (e.g. sildenafil), please consult a doctor before combining, as L-arginine acts as an NO precursor and interactions with these substances are possible.
Yes, both amino acids are 100% plant-based in origin. L-arginine is produced by fermentation; L-citrulline DL-malate is also derived from plant sources. The capsule shell consists of hydroxypropyl methylcellulose (HPMC) – a plant-based cellulose derivative containing no animal ingredients.
This product complies with the requirements of the EU General Product Safety Regulation (GPSR, Regulation (EU) 2023/988). Responsible person (economic operator) pursuant to Art. 16 GPSR & Manufacturer:
Nutrition-Plus Germany e.K. · Herrenwiesenring 19 · 53501 Grafschaft · Germany · info@nutri-plus.de
