This vitamin A supplement boosts my energy; taking it every 2-3 days prevents stomach discomfort effectively.

2025-06-07 Vitamin Reviews Categroy：Vitamin A Views：19

This potent vitamin A supplement significantly improved my energy levels. While requiring dosage adjustment to every 2-3 days to avoid stomach discomfort, it delivers benefits without side effects when personalized.

This is a review of product:

Nature Made Multivitamin Tablets with Iron, Multivitamin for Women and Men for Daily Nutritional Support, 130 Tablets, 130 Day Supply (Packaging May Vary)

From Amazon.com

My Vitamin A Boost: Energy Without Stomach Issues

Great multivitamin and I can feel the difference in energy when I take them.

I do want to add a side of caution however and i didn’t knock stars off for this because I know it is more to do with personal individual issue than the product itself. Still none the less worth mentioning.

While I love these vitamins cause they do work great. I’ve discovered that I’m not able to take them every day. They are likely to strong of a dose for me to do so, because after taking them everyday for a week I noticed was starting to have the side effect of mild stomach pain and general just feeling crummy.

I did try eating a meal before taking to see if that was the issue and it helped a small bit with the stomach pain but not completely.

So i switched to taking these every other 2-3 days and found that works better. I don’t feel ick when i do it this way and i think it’s due to maybe I just need longer to metabolize it.

My bf also takes these and he’s not had any issue with them when taking daily. He’s also loving the difference they’ve made in his overall energy/health.

Vitamin Basics & Tips

Understanding Vitamin A Supplementation

Vitamin A is a fat-soluble nutrient essential for vision, immune function, and cellular communication. The user's experience highlights individual variations in supplement metabolism. Some people process vitamins faster than others due to genetic factors, liver function, or body composition.

Dosage Considerations

The Recommended Dietary Allowance (RDA) for adult males is 900 mcg RAE and 700 mcg RAE for females. Many multivitamins contain 100-150% DV, which might explain the user's sensitivity. Fat-soluble vitamins accumulate in body tissues, making proper dosing crucial.

Managing Stomach Discomfort

Taking supplements with food helps absorption but doesn't eliminate all side effects. The user's solution of spacing doses aligns with clinical recommendations for sensitive individuals. Pairing with meals containing healthy fats (avocado, nuts) enhances absorption while reducing gastric irritation.

Individual Metabolic Differences

Genetic variations in the BCMO1 enzyme affect vitamin A conversion efficiency. Approximately 45% of people have reduced conversion capacity, potentially requiring adjusted dosing. The boyfriend's tolerance suggests efficient metabolism of preformed vitamin A (retinyl esters).

Synergy with Other Nutrients

Vitamin A works best with zinc and vitamin D. Zinc deficiency impairs vitamin A metabolism, while vitamin D helps regulate its absorption. Users experiencing side effects might benefit from checking zinc levels or adding a vitamin D supplement.

Natural Food Sources

Sweet potatoes (1400 mcg RAE per medium), spinach (570 mcg per ½ cup cooked), and eggs (75 mcg per large egg) provide natural vitamin A. Combining supplements with dietary sources requires monitoring to avoid exceeding safe limits (3000 mcg daily for adults).

Signs of Overconsumption

Mild symptoms include nausea and headaches. Chronic excess causes vision changes, bone pain, and liver damage. Users should consult healthcare providers if experiencing persistent symptoms, especially with existing medical conditions or medications.

Storage and Stability

Vitamin A degrades when exposed to light and heat. Store supplements in cool, dark places. Check expiration dates - oxidized vitamin A loses potency and may increase stomach irritation risks.

I use dissolvable Vitamin A powder post-surgery—it outperforms dry supplements effortlessly.

Post-surgery, I switched to this easily dissolvable Vitamin A powder. Unlike dry supplements, it keeps my levels optimal without swallowing struggles—gentle and effective!

Since 2017, this vitamin B boosted my energy, focus, and overall wellness effortlessly.

Taking this vitamin B complex since 2017 transformed my energy levels, mental clarity, and stress resilience – my non-negotiable wellness staple.

I switched to these tiny D3/K2 capsules with coconut oil-more energy, no cramps, better value!

Switching to these small D3/K2 capsules with coconut oil gave me sustained energy, no leg cramps, and superior nutrient absorption—best value I've found!

Switching to these B vitamins eliminated my nausea-small pills, eco-friendly glass bottle, and reliable Amazon Prime delivery.

I finally found B vitamins that don't cause nausea—small, easy-to-swallow pills in sustainable glass bottles with quick Amazon Prime delivery. Highly recommend!

I felt less joint pain and stiffness in 3 days with Vitamin D.

Within 3 days, this Vitamin D reduced my joint soreness, eased stiffness, and boosted mobility - now my daily essential for comfort.

Vitamin D Supreme's K1/K2 formula boosted my absorption - clinical research validates this essential synergy.

Switching to this D3-K complex improved my wellness journey - proper cofactors prevent calcification while enhancing calcium utilization as studies recommend.

People who viewed this article also viewed

These riboflavin tablets reduced my migraines, are easy to swallow, and last three months!

My kid's doctor-recommended Vitamin D drops lasted 18+ months with minimal waste, even with daily use!

I love these sugar-free multifruit capsules for easy, convenient daily vitamin A intake.

I found these raspberry-flavored B12/folate vitamins boosted my energy and improved iron absorption effectively.

Affordable vitamin E supplements improved my vision despite large capsules

After 25 years, Swanson's beta carotene remains my top choice for potent antioxidant and eye health support.

After struggling with low levels, this vitamin D with pure oil formula finally boosted my results in 4 months!

These Vitamin A gummies transformed my energy, brightened eyes, and became a family favorite!

I trust these pure B vitamins for strengthening energy with zero side effects, recommended by my holistic practitioner.

ZEBORA CoQ10 improved my blood pressure and heart performance through its affordable, concentrated formula.

Years of using this vitamin E oil transformed my skin, shielding it from harsh sun while healing scars naturally.