Vitamin ReviewsVitamin BImproved energy and reduced afternoon slump, but excessive urination noted with light-yellow urine effect.

Improved energy and reduced afternoon slump, but excessive urination noted with light-yellow urine effect.

2025-06-01 Vitamin Reviews Categroy:Vitamin B Views:13


Users report sustained energy benefits but struggle with constant bathroom trips; unique light urine color puzzles consumers.


This review is from Amazon.com for product:


Igennus Super B-Complex Methylated B Vitamins, Sustained Release, Clean Label, MTHFR Supplement with Methylfolate & B12 Methylcobalamin, Vegan, Lab Verified, 60 Small Tablets


Vitamin B Boosts Energy, Causes Frequent Urination Review


Not sure what to think about this vitamin just yet. I have been taking it for only 4 days now, and I only take 1 pill/day. I will say that my energy levels have definitely increased. I usually hit a slump around 4 or 5 pm and get super tired. Since taking these I have not felt that. So THAT is definitely a plus. The downside is that it makes me pee All. The. Time. I have never peed so much in my life. My water bill is probably going to be $150 more this month just from flushing the toilet so much. Everytime I leave the house I'm hurrying home to pee. So, I don't enjoy this side effect so much. The other thing that is interesting is that it doesn't turn my pee neon yellow. Every single b-complex vitamin I've ever taken makes my urine turn bright yellow. This one doesn't. It's a very light yellow. So I'm not sure what to think about that, haha. Is that a bad thing or a good thing? Even the methylated forms I've taken in the past made my urine turn bright yellow and didn't make me pee so much, but the constant peeing is likely from the sustained release part. Anyway, 4 days in and these are the things I've noticed so far.


Vitamin Basics & Tips


Vitamin B complex supplements often contain water-soluble vitamins like B2 (riboflavin), which typically causes bright yellow urine due to excess excretion. The light-yellow urine described in this review might indicate lower riboflavin content or optimized absorption in this formulation. Methylated B vitamins mentioned refer to bioactive forms (e.g., methylcobalamin) that bypass conversion steps in genetically susceptible individuals.


Frequent urination could stem from the supplement's diuretic effect – B vitamins assist metabolic processes requiring water, potentially increasing urine output. The "sustained release" mechanism mentioned might prolong this effect. While B vitamins don't directly flush systems like caffeine, they support mitochondrial energy production, explaining the reduced afternoon fatigue reported.


Daily requirements for B vitamins vary: B12 needs 2.4 mcg for adults, while B6 requires 1.3-1.7 mg. Overconsumption beyond the Tolerable Upper Intake Level (UL) can cause neuropathy (B6) or skin flushing (B3). The user's single-pill regimen likely stays within safe limits, though individual responses to additives or fillers may differ.



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Tags: vitamin b complex energy boost frequent urination neon yellow urine methylated forms


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