Supplement reference guide

Know Your Supplements

Understand the 25 most important vitamins, minerals, and nutrients your body needs. Learn what happens when levels are too low or too high, and take control of your health with science-backed knowledge.

Category

No supplements found matching your search.

The bigger picture

Why Understanding Your
Supplements Matters

Micronutrient deficiencies affect over 2 billion people worldwide, often without obvious symptoms until significant health damage has occurred. Knowing the role of each vitamin and mineral helps you make informed decisions about your diet and supplementation.

However, more is not always better. Over-supplementation can lead to toxicity, organ damage, and dangerous interactions with medications. The key is finding your personal optimal range through regular blood testing and data-driven health tracking.

LongevLab helps you decode your body's unique needs by tracking biomarkers over time, so you can supplement intelligently and optimize your healthspan with confidence.

Download on the App Store

FAQ

Frequently Asked
Questions

The most prevalent deficiencies worldwide include Vitamin D, Iron, Vitamin B12, Magnesium, and Folate. These are often caused by inadequate diet, limited sun exposure, or poor absorption due to gut health issues.

Yes. Fat-soluble vitamins (A, D, E, K) accumulate in body tissues and can reach toxic levels. Even water-soluble vitamins and minerals can cause adverse effects at high doses. Always consult a healthcare provider and test your blood levels before supplementing.

The most reliable way is through comprehensive blood testing. Biomarker analysis reveals your actual nutrient levels, allowing for targeted supplementation rather than guesswork. LongevLab tracks these biomarkers over time to help you optimize your levels.

Fat-soluble vitamins (A, D, E, K) and Omega-3s absorb better with food containing dietary fat. Iron absorbs best on an empty stomach with vitamin C. Magnesium and B vitamins can be taken with or without food, though food may reduce stomach upset.