1 Product identity
Ingredient risk
5 ingredients to use with caution
NO2 Red
BrandMRI→Other Combinations Other (e.g. tea bag) 35 ingredients 5 caution DSLD #6645Net contents: 150 Caplet(s)
Target: Adults and Children 4 years and above
DSLD entry: 2012-06-25
2 Ingredients (35)
IngredientGroupSafety
MRI NO2 Red Proprietary BlendProprietary Blend (Combination)—
Advanced 5x NO BoosterBlend—
Arginine KetoisocaproateArginine alpha-ketoisocaproate—
ACTINOS2Whey protin—
MyoCarn Power ComplexBlend (Combination)—
L-HistidineHistidine—
Microcrystalline CelluloseCellulose—
Hydroxypropyl MethylcelluloseHypromellose—
carboxypolymethyleneCarboxypolymethylene—
Stearic AcidStearic Acid—
PolyvinylpyrrolidonePovidone—
Methyl CelluloseMethyl cellulose—
GlycerinGlycerol—
FD&C Red #40Color—
Peppermint flavorFlavor—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⚠️ Use with caution — restricted in some markets
Vitamin D — Granulomatous diseases (sarcoidosis, TB) — unregulated extra-renal CYP27B1 can cause life-threatening hypercalcemia even at standard doses [2][21]
Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…
Vitamin B12 — Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective p…
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
Zinc — Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].
3 Safety cross-reference
Vitamin A — Limited Evidence
⚠ Teratogenic at high doses
⚠ Hepatotoxic with chronic excess
Vitamin C — Generally Safe
⚠ GI distress at high doses
⚠ Kidney stones risk >1g/day
Calcium — Conditionally Safe
⚠ Cardiovascular risk debated >1,000 mg/day
⚠ Kidney stones
Vitamin K — Limited Evidence
⚠ Critical interaction with warfarin
Vitamin D — Use with Caution
⚠ Hypercalcemia at >10,000 IU/day
⚠ Vascular calcification risk
Vitamin B6 — Use with Caution
Vitamin B12 — Use with Caution
Folate — Conditionally Safe
⚠ May mask B12 deficiency
⚠ Colorectal cancer risk debated
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
Zinc — Use with Caution
⚠ Copper deficiency at >40 mg/day
⚠ Nausea, metallic taste
L-Arginine — Limited Evidence
⚠ Hypotension
⚠ May worsen herpes outbreaks
Chloride — Limited Evidence
⚠ Co-ingested with sodium
Glycine — Generally Safe
⚠ Well tolerated
Citrulline malate — Generally Safe
⚠ GI discomfort at high doses
⚠ May lower blood pressure
L-Carnitine — Limited Evidence
⚠ Fishy body odor
⚠ TMAO concern
L-Glutamine — Conditionally Safe
⚠ Hepatic encephalopathy risk
⚠ May elevate ammonia
Beta-Alanine — Generally Safe
⚠ Tingling (paraesthesia) — harmless
Silicon — Generally Safe
⚠ Very low toxicity
4 Label claims
• All Other
• Structure/Function
5 Data source
DSLD ID6645
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2012-06-25
6 More from MRI
View MRI Safety Scorecard → 19 products
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Vancouver
Pkhakadze G. NO2 Red — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Aug 28]. Available from: https://supplement.ge/products/dsld-6645/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG
Publisher: PHIG