G Dr. GilyEvidence-Based Lifestyle Medicine
👨‍⚕️ Internal medicine physician & nutritionist 🔬 Evidence-based, referenced 🗣️ Plain patient language 🆓 Free tools since 2007
Physician-Written Programs

Practical Guides for Real Change

No hype, no fads — structured, referenced programs you can actually follow, written the way I explain things to my own patients.

Type 2 Diabetes Remission Guide

$39 digital download
  • What remission means, and who can realistically achieve it
  • Food strategies backed by remission trials — explained simply
  • How to work with your doctor as medications are reduced
  • Meal patterns, movement, sleep and stress — the full picture
  • Plain language: written for patients, not for doctors

📅 Launching October 2026 — join the list for a launch discount

21 Days Biblical Diet Program

$29 digital download
  • A 21-day guided return to the original plant-based diet
  • Day-by-day meals, simple recipes, and shopping guidance
  • Scripture-rooted reflections pairing faith with health
  • The modern science behind plant-based eating
  • Designed for individuals, families, and church groups

📅 Launching late 2026 — join the list for a launch discount

Nutrition Apps

Data-Driven Tools for Your Phone

Built on the USDA food database and NIH Dietary Reference Intakes. Free to download, with an optional Pro subscription that unlocks the complete nutrient set.

NutriRank app icon
NutriRank
Nutrient Finder

Pick any nutrient — vitamin, mineral, protein, fiber, amino acid or fatty acid — and see every food ranked from highest to lowest, with % Daily Values tailored to your age, sex, and life stage. Filter by diet or by any of 16 food groups.

Free · Pro from $2.99/mo, $19.99/yr, or $39.99 lifetime
Download on theApp Store ▶ Coming toGoogle Play
VitalFill app icon
VitalFill
Nutrient Tracker

Are you actually getting enough of what your body needs? Log your food and VitalFill tracks calories plus 40+ nutrients against your personal targets — showing, at a glance, which ones you have filled and which still fall short.

Free · Pro subscription unlocks the full nutrient set
Coming to theApp Store ▶ Coming toGoogle Play
Health eTools

Free Calculators Used by Thousands

Simple, accurate tools for the numbers that matter to your health.

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Ideal Weight & BMI

Find your body mass index and a realistic healthy weight range for your height and frame.

Calculate now →
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Basal Metabolic Rate

How many calories do you burn just staying alive? The starting point of every effective weight plan.

Calculate now →
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Food Calorie Calculator

Search the USDA database and get calories and full nutrition data for any food, in any quantity.

Look up a food →
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Exercise Calorie Counter

Over 800 activities: see exactly how long you need to walk, swim, or garden to burn a target number of calories.

Find your exercise →
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Rockport Fitness Test

Measure your aerobic capacity and VO2max with a simple one-mile walk, using NIH and ACSM norms.

Test your fitness →
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Calories Burned by Activity

A comprehensive calculator covering everyday activities, sports, and occupations.

Calculate now →
Educational Articles

Learn From a Doctor Who Writes Like a Human

Referenced, honest, and occasionally opinionated — on weight loss, prevention, nutrition, and the state of modern health care.

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The Ten Commandments of Weight Loss

A memorable series on what actually works for lasting weight loss — genetics, plateaus, metabolism, and all.

Start the series →
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Excogitations

Musings on medicine and culture: supplements, cancer treatments, patient satisfaction, the reliability of science.

Read the essays →
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Lifestyle & Prevention

Why fruits and vegetables prevent disease, how nutrition needs change with age, and why prevention beats treatment.

Explore articles →
Dr. Gily Ionescu, MS MD
About

Hi, I'm Dr. Gily Ionescu

I am an internal medicine physician and nutritionist with a master's degree in nutrition. For nearly two decades I have been building free tools and writing practical articles to help people take charge of their weight, their blood sugar, and their long-term health.

My approach is simple: take the best available evidence, strip away the hype, and translate it into plain language and concrete steps — the same way I counsel patients in my own clinic every day.

MS, MD Internal Medicine Physician Nutritionist Lifestyle Medicine