Health Tools

Simplified Framingham Risk Score. For clinical decisions, use the full ACC/AHA ASCVD calculator with your physician. This tool cannot replace clinical assessment.

Blood Pressure Chart

Category	Systolic (mmHg)	Diastolic (mmHg)
Normal	Less than 120	Less than 80
Elevated	120–129	Less than 80
High (Stage 1)	130–139	80–89
High (Stage 2)	140 or higher	90 or higher
Crisis	Higher than 180	Higher than 120

Source: American Heart Association. This chart is for educational purposes only.

Target Heart Rate Calculator

Your age

Based on the standard formula (220 − age). Individual variation applies. Source: American Heart Association.

🫀 Cholesterol ratio calculator

Total (mg/dL)

HDL (mg/dL)

LDL (mg/dL)

Ratios supplement individual lipid values for risk assessment. Source: AHA lipid management guidelines.

Body & weight

BMI Calculator

Weight (kg)

Height (cm)

BMI is a screening tool, not a diagnostic measure. Consult your healthcare provider for personalized advice.

📏 Body Fat Percentage

U.S. Navy circumference method

Sex

Height (cm)

Waist (cm)

Neck (cm)

Hip (cm) — women only

U.S. Navy circumference method. Accuracy ±3-4%. For precise measurement, consult a healthcare provider for DEXA scan.

Waist-to-Hip Ratio

Waist (cm)

Hip (cm)

Sex

WHO classification. Waist-to-hip ratio is a predictor of cardiovascular disease risk.

⚖️ Ideal Body Weight

Height (cm)

Sex

Three established formulas compared. Ideal weight varies by body composition, muscle mass, and frame size.

Kidney & blood

🫘 eGFR Kidney Function Calculator

Serum creatinine (mg/dL)

Age

Sex

CKD-EPI 2021 equation (race-free). For clinical use, confirm with laboratory-reported eGFR. Source: KDIGO 2024 guidelines.

🩸 Blood Sugar Converter

mg/dL

⇄

mmol/L

Normal fasting	<100 mg/dL	<5.6 mmol/L
Pre-diabetes	100–125 mg/dL	5.6–6.9 mmol/L
Diabetes	≥126 mg/dL	≥7.0 mmol/L

Conversion factor: 1 mmol/L = 18.02 mg/dL. Source: American Diabetes Association.

🩸 A1c ↔ average blood sugar

A1c (%)

→

Avg glucose mg/dL
mmol/L

Normal	<5.7%	<117 mg/dL
Pre-diabetes	5.7–6.4%	117–137 mg/dL
Diabetes	≥6.5%	≥140 mg/dL

eAG formula: 28.7 × A1c − 46.7. Source: ADA Standards of Care 2024.

Mental health screening

🧠 PHQ-9 Depression Screening

Over the last 2 weeks, how often have you been bothered by the following?

Important: This is a screening tool, not a diagnosis. If your score suggests moderate or higher depression, or if you selected any score on question 9, please speak with a healthcare professional. If you are in crisis, contact a helpline in your country.

😰 GAD-7 Anxiety Screening

Over the last 2 weeks, how often have you been bothered by the following?

Important: This is a screening tool, not a diagnosis. If your score is 10 or above, please consult a healthcare professional for proper evaluation.

😤 Perceived Stress Scale (PSS-4)

In the last month, how often have you...

PSS-4 (Cohen, 1983). Validated brief stress measure. If high stress persists, consider professional support.

Respiratory

🚬 Smoking Pack-Years Calculator

Cigarettes per day

Years smoked

1 pack-year = 20 cigarettes/day for 1 year. Used to assess cumulative tobacco exposure and screening eligibility.

Nutrition & lifestyle

Daily Calorie Needs (TDEE)

Weight (kg)

Height (cm)

Age

Sex

Activity level

Based on the Mifflin-St Jeor equation. For personalised nutrition advice, consult a registered dietitian.

🥗 Macronutrient calculator

Your daily calories (use TDEE calculator above) Goal

General guidelines. Individual needs vary. Consult a registered dietitian for personalised nutrition plans. Source: USDA Dietary Guidelines.

Daily Water Intake Calculator

Weight (kg)

Exercise (min/day)

General guideline based on body weight and activity. Needs increase in hot climates and during illness. Source: European Food Safety Authority.

☕ Daily Caffeine Intake

How many per day?

Coffee (cups)

Espresso (shots)

Tea (cups)

Energy drinks

Cola (cans)

Dark chocolate (bars)

Approximate caffeine content per serving. Source: European Food Safety Authority (EFSA).

🍷 Weekly Alcohol Units Calculator

How many drinks per week?

Beer (pints)

Wine (glasses)

Spirits (shots)

1 UK unit = 10ml pure alcohol. Source: UK Chief Medical Officers' guidelines (2016).

⏰ Intermittent fasting window

When did you eat your last meal? Fasting protocol

Consult your doctor before starting IF, especially if you have diabetes, are pregnant, or have a history of eating disorders. Source: NEJM review (de Cabo, 2019).

Sleep

Sleep Calculator

What time do you need to wake up?

Based on 90-minute sleep cycles. Adults need 4-6 complete cycles (6-9 hours).

Women's health & pregnancy

🌸 Ovulation & fertility window

First day of last period Average cycle length (days)

Based on standard luteal phase (14 days). Actual ovulation varies. Not a contraception method. Source: ACOG.

Pregnancy Due Date Calculator

First day of last menstrual period

Based on Naegele's rule (LMP + 280 days). For estimation only — consult your obstetrician for accurate dating.

🤰 Pregnancy week-by-week

First day of last period

'">Where am I?

Based on LMP dating. Confirm gestational age with ultrasound. Source: ACOG.

Children & pediatrics

👶 Child BMI percentile

For children and teens aged 2–19

Age (years)

Sex

Weight (kg)

Height (cm)

Approximate percentile using CDC median/85th BMI-for-age values. For clinical assessment, plot on official WHO/CDC growth charts.

Health screening & risk

🩸 Iron deficiency risk screening

Check any symptoms you experience:

Screening checklist only — not a diagnosis. Iron deficiency requires blood tests (serum ferritin <30 μg/L). Source: WHO iron deficiency criteria.

☀️ Vitamin D deficiency risk

Check factors that apply to you:

Risk assessment only. Diagnosis requires blood test (25-hydroxyvitamin D). Source: Endocrine Society Clinical Practice Guidelines.

☀️ Skin type & UV risk (Fitzpatrick)

What happens when you spend 30 min in midday sun without protection?

Fitzpatrick classification (1975). Safe exposure time varies by UV index, altitude, and time of day. Always use sun protection. Source: WHO UV guidelines.

⏳ Biological age estimator

How old is your body really?

Actual age

Sex

Weekly exercise (minutes)

90 min

Sleep per night (hours)

7 hrs

Current smoker

More than 14 alcohol units/week

High chronic stress

Strong social connections

Mediterranean-style diet

Simplified estimation based on modifiable lifestyle risk factors. Not a clinical measurement. Based on epidemiological data from Framingham, EPIC, and Blue Zones research.

Drug & supplement interactions

💊 Interaction checker

Drug-drug and drug-supplement interactions

500+ medications · 120+ supplements · Evidence-referenced

Medication or supplement

Methodology & sources

Interaction engine: Class-based pharmacological mapping. Each medication and supplement is assigned to one or more pharmacological classes (e.g., CYP3A4 substrate, serotonergic, antiplatelet). Interactions are defined between classes, not individual drugs, following the methodology used in Stockley's Drug Interactions and the BNF.

Severity grading (aligned with Stockley's classification):

Major: Potentially life-threatening or permanently damaging. Generally contraindicated.
Moderate: May worsen patient condition. Requires monitoring, dose adjustment, or alternative selection.
Minor: Limited clinical significance. Awareness recommended.

Evidence levels:

Established: Confirmed by clinical studies or systematic reviews
Probable: Supported by case reports and pharmacological mechanism
Theoretical: Predicted from known pharmacology, limited clinical data

Primary sources:

British National Formulary (BNF) Interactions, NICE, 2024
Stockley's Drug Interactions, 13th ed., Pharmaceutical Press
FDA Drug Safety Communications (fda.gov)
NIH DailyMed drug labels (dailymed.nlm.nih.gov)
DrugBank Open Data (go.drugbank.com)
Memorial Sloan Kettering About Herbs (mskcc.org/aboutherbs)
NIH Office of Dietary Supplements (ods.od.nih.gov)
WHO Monographs on Selected Medicinal Plants, Vols 1-4
EMA Herbal Monographs (ema.europa.eu)
Natural Medicines Comprehensive Database

Limitations: This tool covers common clinically significant interactions. It does not include all possible interactions, food-drug interactions beyond key examples, or dose-dependent effects. Individual patient factors (age, renal/hepatic function, genetics) affect interaction severity. This tool is for educational purposes and does not replace clinical judgment.

Report a missing interaction: editor@gmj.ge

💊 What your medication depletes

Common drugs that reduce essential nutrients. Check if you need supplementation.

Drug / Class	Depletes	Risk	Action
Metformin	Vitamin B12, Folate	High	Test B12 annually
PPIs (Omeprazole etc.)	Magnesium, Calcium, B12, Iron	High	Monitor Mg after 1yr+
Statins	CoQ10	Moderate	Consider CoQ10 if muscle pain
Diuretics (Furosemide)	Potassium, Magnesium, Zinc, B1	High	Monitor electrolytes
ACE inhibitors	Zinc	Moderate	Consider zinc if taste changes
Corticosteroids	Calcium, Vitamin D, Potassium	High	Supplement Ca+D if >3mo
Oral contraceptives	B6, B12, Folate, Magnesium, Zinc	Moderate	B-complex recommended
Antibiotics (broad)	Probiotics, B vitamins, Vitamin K	Moderate	Probiotics during + 2wks after
Phenytoin / Carbamazepine	Vitamin D, Calcium, Folate	High	Supplement D+Ca+folate
SSRIs	Sodium	Moderate	Monitor sodium in elderly
Methotrexate	Folate	High	Folic acid 5mg/wk standard
Isoniazid (TB)	Vitamin B6	High	B6 10-25mg/day co-prescribed
Lithium	Thyroid hormones, Calcium	Moderate	Monitor TSH q6-12mo
Warfarin	Vitamin K (variable interaction)	High	Consistent K intake, not supplementation

Sources: Stockley's Drug Interactions 2023, BNF 2024, Ames BN. Pharmacol Rev 2002. Always consult your healthcare provider before starting supplements.

Full supplement safety profiles and dosage guidance at supplement.ge →

⚠️ Allergen-Supplement checker

Select your allergy to see which supplements may contain that allergen

Sources: European Academy of Allergy and Clinical Immunology (EAACI), FDA allergen labeling requirements, NIH Office of Dietary Supplements. Always read supplement labels and consult your allergist.

Health Tools

Your health, measured.

Heart & cardiovascular

❤️ Cardiovascular Disease Risk Calculator

Blood Pressure Chart

Target Heart Rate Calculator

🫀 Cholesterol ratio calculator

Body & weight

BMI Calculator

📏 Body Fat Percentage

Waist-to-Hip Ratio

⚖️ Ideal Body Weight

Kidney & blood

🫘 eGFR Kidney Function Calculator

🩸 Blood Sugar Converter

🩸 A1c ↔ average blood sugar

Mental health screening

🧠 PHQ-9 Depression Screening

😰 GAD-7 Anxiety Screening

😤 Perceived Stress Scale (PSS-4)

Respiratory

🚬 Smoking Pack-Years Calculator

Nutrition & lifestyle

Daily Calorie Needs (TDEE)

🥗 Macronutrient calculator

Daily Water Intake Calculator

☕ Daily Caffeine Intake

🍷 Weekly Alcohol Units Calculator

⏰ Intermittent fasting window

Sleep

Sleep Calculator

Women's health & pregnancy

🌸 Ovulation & fertility window

Pregnancy Due Date Calculator

🤰 Pregnancy week-by-week

Children & pediatrics

👶 Child BMI percentile

Health screening & risk

🩸 Iron deficiency risk screening

☀️ Vitamin D deficiency risk

☀️ Skin type & UV risk (Fitzpatrick)

⏳ Biological age estimator

Drug & supplement interactions

💊 Interaction checker

💊 What your medication depletes

⚠️ Allergen-Supplement checker

Test your knowledge

Health Fact or Fiction?