AI Heelth: Smarter Health Tools and Clear Guides for Healthy Aging
Check your BMI, estimate your daily calories, and learn what your blood pressure, blood sugar and waist numbers mean, in plain language. Every guide is checked against current WHO, CDC, AHA and ADA recommendations and written for adults who want to stay strong, sharp and independent after 40 and 50.
- Free to use
- Guideline-referenced numbers
- Plain-English answers
- Doctor-presented video lessons
Quick answer: what is AI Heelth?
AI Heelth (aiheelth.com) is a free health education website that pairs simple online calculators (BMI, daily calories and food calories) with evidence-based guides on nutrition, heart health, blood sugar, gut health and mental wellness. It is designed mainly for adults over 40 who want to understand their key health numbers and make small, sustainable changes. It supports, but never replaces, advice from your own doctor.
Which free AI Heelth tools can I use today?
Each tool gives you a result in seconds and explains what it means, so you are not left with a number and no context.
BMI Calculator
Find your Body Mass Index in metric or imperial units and see your weight category in seconds. Compare your result with the South Asian cut-offs in the table below.
Open BMI CalculatorCalorie Calculator
Estimate how many calories your body needs each day to maintain, lose or gain weight, based on age, sex, height, weight and activity level.
Open Calorie CalculatorFood Calorie Calculator
Look up the calories and macronutrients in everyday foods and build a balanced plate with confidence.
Open Food Calorie CalculatorWhat health numbers should every adult know?
These are the healthy targets used by leading health bodies for most adults. Your doctor may set different goals for you based on your age, medicines and medical history.
| Measure | Healthy target (most adults) | Worth discussing with a doctor | Source |
|---|---|---|---|
| Blood pressure | Below 120/80 mmHg | 130/80 mmHg or higher on repeated readings | AHA/ACC 2025 |
| BMI (general adults) | 18.5 to 24.9 | 25 or above, or below 18.5 | WHO |
| BMI (South Asian adults) | 18.5 to 22.9 | 23 or above (higher metabolic risk at lower BMI) | WHO expert consultation |
| Waist circumference (South Asian) | Men below 90 cm, women below 80 cm | At or above these values | IDF |
| HbA1c | Below 5.7% | 5.7% to 6.4% (prediabetes); 6.5% or above (diabetes range) | ADA |
| Fasting blood glucose | Below 100 mg/dL (5.6 mmol/L) | 100 to 125 mg/dL (prediabetes); 126 mg/dL or above (diabetes range) | ADA |
| Physical activity | 150 to 300 min/week moderate activity, plus muscle strengthening 2+ days | Mostly sitting, or less than 150 min/week | WHO 2020 |
| Balance training (65+) | 3 or more days per week | Falls, dizziness or unsteady walking | WHO 2020 |
| Sleep | 7 or more hours per night | Regular loud snoring, gasping, or daytime sleepiness | AASM / CDC |
| Salt | Less than 5 g per day (about 1 teaspoon) | High blood pressure or kidney problems | WHO |
| Fruit and vegetables | At least 400 g (5 portions) per day | Fewer than 2 portions on most days | WHO |
Values are for non-pregnant adults and are for education only. A single reading is not a diagnosis: blood pressure and blood sugar are confirmed with repeated tests by a qualified clinician.
What do blood pressure readings mean?
| Category | Top (systolic) | Bottom (diastolic) |
|---|---|---|
| Normal | Below 120 | and below 80 |
| Elevated | 120 to 129 | and below 80 |
| Stage 1 | 130 to 139 | or 80 to 89 |
| Stage 2 | 140 or higher | or 90 or higher |
| Severe | Above 180 | and/or above 120 |
A reading above 180/120 with chest pain, breathlessness, weakness, or vision or speech changes is an emergency. Learn more: High blood pressure, the silent killer.
What do BMI categories mean?
| Category | General (WHO) | South Asian |
|---|---|---|
| Underweight | Below 18.5 | Below 18.5 |
| Healthy | 18.5 to 24.9 | 18.5 to 22.9 |
| Overweight | 25 to 29.9 | 23 to 27.4 |
| Obesity | 30 or above | 27.5 or above |
BMI does not measure body fat directly and can mislead in very muscular people and older adults. Pair it with waist size. Calculate your BMI.
Standards last reviewed: November 2026.
What health topics does AI Heelth cover?
Nutrition and nutrients
Carbs, protein, fats, nuts and daily nutrient routines.
Heart health
Heart attack warning signs, morning risk and symptoms in women.
Blood sugar and diabetes
HbA1c explained and lifestyle steps that may help control it.
Gut health
Fibre, fermented foods and everyday habits for a healthier gut.
Mental wellness
Recognising anxiety and finding the right kind of support.
Men's health
Foods that may support prostate health, and what science says.
Health and fitness
Calorie needs, weight goals and staying active at any age.
Health videos
Short, doctor-presented video lessons on everyday health questions.
Which AI Heelth guides should I read first?
| Guide | What you will learn | Best for |
|---|---|---|
| Heart attack or heartburn? | Seven warning signs that need urgent attention | Anyone with chest discomfort |
| Heart attack symptoms in women | Why women's symptoms are often missed | Women and their families |
| Why heart attacks happen in the morning | The body-clock link and simple morning habits | Adults with heart risk factors |
| How to control HbA1c naturally | Food, activity and sleep steps alongside medical care | Prediabetes and type 2 diabetes |
| How much protein do you need? | Daily protein needs and why they rise with age | Adults 50+ protecting muscle |
| Good carbs vs. bad carbs | Choosing carbs that keep energy and sugar steady | Weight and blood sugar goals |
| Is fat bad for you? | Healthy fats vs. trans and excess saturated fats | Heart-healthy eating |
| Best fermented foods for gut health | Yogurt, kefir and the label mistake to avoid | Digestive comfort |
| Best nuts for brain and heart health | Which nuts to choose and sensible portions | Healthy snacking |
How is AI Heelth different from other health websites and apps?
| Feature | AI Heelth | Typical health app |
|---|---|---|
| Cost | Free calculators and guides | Key features often behind a subscription |
| Results explained | Every number comes with what it means and next steps | Number only, little context |
| South Asian thresholds | Lists Asian BMI and waist cut-offs alongside global ones | Usually global values only |
| Written for 40+ and 50+ | Focus on heart, blood sugar, muscle and healthy aging | Often aimed at younger fitness users |
| Learn your way | Read the guide, use the tool, or watch the video | Usually one format |
| Safety-first | Clear red-flag signs and when to see a doctor | Varies |
How we create and review content
- Start from guidelinesNumbers and advice are drawn from WHO, CDC, NIH, AHA and ADA guidance and peer-reviewed research.
- Write in plain languageEach guide opens with a short answer, then explains the why and the how.
- Use careful claimsWe say a food or habit "may support" or "is linked to" a benefit. We never claim to cure or treat disease.
- Review and updatePages are re-checked when major guidelines change, and the review date is shown.
When should I get emergency help instead of using an online tool?
Call your local emergency number (for example 1122 or 115 in Pakistan, 911 in the US, 999 or 112 in the UK) straight away if you or someone near you has:
- Chest pain, pressure or tightness, especially spreading to the arm, jaw, neck or back
- Sudden face drooping, arm weakness, or slurred or confused speech (possible stroke)
- Severe shortness of breath, fainting, or a seizure
- Blood pressure above 180/120 mmHg with headache, chest pain or vision changes
- Thoughts of harming yourself, or severe bleeding that will not stop
Online calculators and articles cannot assess an emergency. Do not wait to finish reading.
Frequently asked questions about AI Heelth
Is AI Heelth free to use?
Yes. The BMI, calorie and food calorie calculators, the health guides and the videos on aiheelth.com are free to use.
Can AI Heelth diagnose a health condition?
No. AI Heelth is for education and self-awareness only. Its tools and guides cannot diagnose, treat or replace care from a qualified doctor. Use your results as a starting point for a conversation with your healthcare provider.
Where does the health information on AI Heelth come from?
Guides are based on recommendations from organisations such as the World Health Organization (WHO), the US Centers for Disease Control and Prevention (CDC), the National Institutes of Health (NIH), the American Heart Association (AHA) and the American Diabetes Association (ADA), together with peer-reviewed studies. Key numbers are re-checked when guidelines change.
Why does AI Heelth show different BMI ranges for South Asian adults?
Research shows that South Asian adults tend to develop type 2 diabetes and heart disease at a lower BMI than European populations. A WHO expert consultation therefore suggested lower action points for Asian populations, so overweight risk starts at about 23 and obesity at about 27.5.
What is a healthy blood pressure for adults?
For most adults, normal blood pressure is below 120/80 mmHg. Under the 2025 AHA/ACC guideline, 120 to 129 systolic is elevated, and 130/80 or higher is high blood pressure. Your doctor confirms this using several readings taken on different days.
What HbA1c level is normal?
According to the American Diabetes Association, an HbA1c below 5.7% is normal, 5.7% to 6.4% is in the prediabetes range, and 6.5% or above is in the diabetes range when confirmed by a repeat test.
How much exercise do adults over 50 need?
WHO recommends 150 to 300 minutes of moderate activity, such as brisk walking, each week, plus muscle-strengthening activities on at least two days. Adults aged 65 and over should also include balance training on three or more days a week to help prevent falls. Check with your doctor before starting if you have a heart condition or other health concerns.
Who is AI Heelth for?
AI Heelth is written mainly for adults aged 40 and above, and their families, who want practical, trustworthy guidance on heart health, blood sugar, nutrition, gut health and healthy aging.
Start with one number today
Knowing your BMI and daily calorie needs takes less than a minute, and it is the easiest first step towards better long-term health.
Medical disclaimer: The content and tools on AI Heelth are for general educational purposes only and are not a substitute for professional medical advice, diagnosis or treatment. Always ask your doctor or another qualified health provider about a medical condition, before changing your diet, exercise or medicines, and before acting on any result from an online calculator. Never ignore professional advice or delay seeking it because of something you read on this website.
