I didn't list the Multi I am on, and I read N2Gaurd ingredients. It didn't have a lot of those things listed. NMN, resveratrol, citrus bergamot, CoQ10 + PQQ, high‐dose niacin, ALA, schizandra. And the TUDCA, NAC, Milk Thistle are not nearly as much as I take.
With help of AI comparing the 2.
Mapping of Overlap, Under-dose / Overdose, and Unique Items
| Nutrient / Ingredient | N2Guard dose | GNC Mega Men 50 Plus dose | Your Stack dose | Comments |
|---|
| NAC (N-Acetyl L-Cysteine) | 300 mg | — | 600 mg + 600 mg = 1,200 mg/day | You’re ~4× N2Guard; GNC doesn’t add NAC. |
| TUDCA | 250 mg | — | 500 mg × 3 = 1,500 mg/day | ~6× N2Guard. |
| Milk Thistle (Silymarin) | 300 mg | — | 300 mg × 2 = 600 mg/day | Double N2Guard. |
| Turmeric / Curcumin | 125 mg | 100 mg | 1,500 mg + piperine | You greatly exceed both. |
| Taurine | 233 mg | — | 2–3 g/day | 10× higher than N2Guard. |
| Omega-3 (EPA / DHA) | 15 mg | 60 mg fish oil (~18 mg EPA/DHA) | ~4,300 mg/day | Massive difference — your dose is therapeutic. |
| CoQ10 + PQQ | 10 mcg CoQ10 | 2 mg CoQ10 | 400 mg CoQ10 + 20 mg PQQ | Orders of magnitude higher. |
| Alpha Lipoic Acid (ALA) | not listed / trace | 25 mg | 600 mg | Your dose is full therapeutic. |
| Niacin (Vitamin B3) | not listed | 32 mg niacinamide | 500 mg × 3 = 1,500 mg/day | You far exceed standard levels |
| Vitamin D3 | 100 IU | 2,000 IU | 5,000 IU (MK-7 combo) | Total ≈ 7,000 IU/day — monitor 25-OH D labs. |
| Vitamin K2 (MK-7) | — | — (K1 present only) | 100–120 mcg MK-7 | You cover MK-7 specifically (not in others). |
| Vitamin C | 250 mg | 150 mg | — | If added, ≈ 400 mg total intake (RDA met). |
| Vitamin B12 / Folate / B-complex | 1,000 mcg B12 + B’s 25 mg each | B12 100 mcg + B’s 20–25 mg range | Not supplemented directly | Adequately covered by multi + N2Guard. |
| Zinc | 15 mg | 30 mg | — | Combined 45 mg — high; ensure copper balance. |
| Selenium | 25 mcg | 200 mcg | — | 225 mcg total — near upper safe limit (400 mcg). |
| Magnesium | 50 mg | 50 mg | — | Only ~100 mg total — low vs ideal 400–500 mg/day. |
| Iodine | 100 mcg | 150 mcg | — | Total 250 mcg = safe. |
| Resveratrol, NMN, TMG, Citrulline Malate, Citrus Bergamot, Schizandra, PQQ | — | — | Present in your stack only | Unique to your stack (longevity and vascular support). |
| Saw Palmetto / Lycopene / Men’s Herbs | — | Saw Palmetto 80 mg + Lycopene 6 mg | — | Unique to GNC multi; supports prostate health. |
| Policosanol, Red Yeast Rice, Garlic Extract, Astragalus, Bacopa, Yerba Mate | Present in N2Guard | — | — | Unique to N2Guard (metabolic / organ support). |