Find Your Optimal Dose

Explore evidence-based calculators to help you discover personalized dosing for supplements, nutrition, and herbal support — tailored to your health goals.

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SMART TOOLS

Committed to Quality

Personalized, evidence-driven tools created to help you optimize nutrition, hormones, and wellness.

Doctor Created

Evidence Based

Built from current guidelines and peer-reviewed research.

Clinically Validated

Recommendations grounded in real-world clinical practice.

Explore Our Tools

Supplement Dosing Calculators

Vitamin D Calculator

Protein Intake Calculator

Magnesium Calculator

Iron Calculator

Omega-3 Calculator

About The Creator

Dr. Linda Nykin ND, CFMP

Dr. Linda Nykin is a Naturopathic Doctor and Certified Functional Medicine Practitioner, and the Founder of Pacha Integrative and Naturopathic Medicine in Berkeley, California. She specializes in women’s health, gut health, and hormone balance, combining evidence-based medicine with a root-cause, integrative approach to care.

Learn More About My Practice

Finding trustworthy health guidance online can be overwhelming. That’s why I built this growing suite of integrative medicine calculators , tools that turn the latest research and real clinical experience into clear, personalized recommendations. Each calculator is designed to answer the most common patient questions, from “How much Vitamin D should I take?” to “How much protein do I need to support my goals?”