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Sources and methodology

How we turn guidelines into your plan

Every rule in an Ayush plan points to one or more of the sources below. This page explains how we choose sources, write rules and review them.

Methodology

  1. Choose sources. We prefer national and international guidelines (WHO, ICMR–NIN, AHA/ACC, ADA, NICE, ACR, Ministry of Ayush) and large systematic reviews. Patient-education sites such as the NHS, Mayo Clinic and Harvard's Nutrition Source help us explain ideas plainly.
  2. Write rules. Each recommendation becomes a rule with clear inputs (age, conditions, measurements, goals) and outputs (targets, food choices, exercise doses, removed poses). Each rule carries tags pointing to its sources.
  3. Safety first. Safety rules run before everything else: emergency symptoms, alert thresholds, contraindications and groups who need extra care, such as teens, pregnant users and people with heart conditions.
  4. Indian defaults. We use Asian BMI and waist cut-offs, ICMR–NIN protein needs and Indian portion units, and build menus from regional cuisines.
  5. Personalise and adapt. Your measurements and logs set targets. A weekly review adjusts the plan based on how much of it you completed and how your readings moved.

Clinical review workflow

Every rule, recipe, exercise, pose and article moves through four states: draft, in review, approved and retired. A qualified reviewer for that area (physician, registered dietitian, physiotherapist or certified yoga therapist) must approve it before it reaches users. Reviews are logged with the reviewer, date and source version. We re-review the full rule set every quarter and whenever a major guideline changes.

Current status: rules and content in this release are drafts awaiting clinical sign-off.

Content principles

  • All text, recipes, plans and illustrations are created by Ayush.
  • We paraphrase guidance and cite it; we do not copy text, plans, images or branded programmes.
  • We describe benefits in cautious language ("may help", "is linked with") unless strong evidence supports more.
  • Projected timelines are shown as estimates, with the basis explained.

Use of AI

When you switch on AI coaching, Ayush uses a large language model (Anthropic's Claude) to explain your plan in plain language, reword it in your chosen language and fit schedules around your day. The AI works inside fixed limits:

  • It cannot add, remove or change safety rules, targets or contraindications.
  • It receives plan details without your name, contact details or Health ID.
  • Its replies are checked for red-flag topics, which are routed to the safety screens.
  • It never comments on medicines beyond advising you to ask your doctor.
  • AI coaching is off unless you switch it on, and you can switch it off at any time.

Limitations

  • Ayush relies on information you enter. It cannot examine you or verify readings.
  • Nutrition values are approximate for typical home recipes.
  • Guidelines are written for populations; your doctor may set different targets for you.
  • Ayush does not cover type 1 diabetes, pregnancy-specific plans, kidney disease diets, eating disorders or post-surgical rehabilitation. Please follow specialist advice for these.

Physical activity

  1. WHO guidelines on physical activity and sedentary behaviour

    World Health Organization, 2020

    How we use it: Weekly activity targets by age (including 60 minutes a day for teens), muscle strengthening on 2+ days, balance training for adults over 60, and cutting long sitting time.

  2. Daily steps and health outcomes in adults: a systematic review and dose-response meta-analysis

    Ding D, et al. Lancet Public Health, 2025

    How we use it: Step targets that build towards about 7,000 a day, the level linked with large reductions in early death, heart disease, dementia and depression compared with 2,000 steps.

  3. Physical activity guidelines for adults aged 19 to 64

    NHS (UK)

    How we use it: Plain-language framing of moderate activity, the talk test, and strength work.

Nutrition

  1. Dietary Guidelines for Indians (2024 edition)

    ICMR – National Institute of Nutrition, Hyderabad

    How we use it: The base Indian plate: whole grains and millets, pulses, vegetables and fruit, limits on salt, sugar, oil and ultra-processed food, protein needs, and label reading.

  2. Healthy diet fact sheet

    World Health Organization

    How we use it: General healthy-eating principles used for the global meal options.

  3. Sodium reduction fact sheet

    World Health Organization

    How we use it: The 5 g salt (2,000 mg sodium) daily limit used for every plan.

  4. Guideline: sugars intake for adults and children

    World Health Organization, 2015

    How we use it: Added sugar under 10% of energy, and under 5% for blood sugar and weight goals.

  5. Healthy Eating Plate

    Harvard T.H. Chan School of Public Health, The Nutrition Source

    How we use it: Choosing oils and fats, and the visual plate model adapted for Indian meals.

Body weight

  1. Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies

    WHO Expert Consultation. The Lancet, 2004

    How we use it: Asian BMI cut-offs (healthy 18.5–22.9, overweight 23–24.9, obesity 25 and above) and waist thresholds of 90 cm for men and 80 cm for women.

Diabetes

  1. Standards of Care in Diabetes—2026

    American Diabetes Association. Diabetes Care, 2026

    How we use it: Lifestyle care for type 2 diabetes and prediabetes: nutrition patterns, weight management, activity, after-meal walking, and glucose ranges used for alerts.

  2. Hypoglycemia (low blood glucose)

    American Diabetes Association

    How we use it: Low-sugar thresholds (below 70 and below 54 mg/dL) and the general approach shown in low-sugar alerts.

  3. Type 2 diabetes in adults: management (NG28)

    National Institute for Health and Care Excellence (UK)

    How we use it: Individualised lifestyle advice, weight-loss goals and review intervals.

Blood pressure

  1. 2025 AHA/ACC/Multisociety Guideline for the Prevention, Detection, Evaluation and Management of High Blood Pressure in Adults

    Jones DW, et al. Hypertension, 2025;82(10):e212–e316

    How we use it: BP categories, the under-130/80 target, lifestyle-first steps, validated upper-arm home monitors, and why cuffless watches are not used for BP alerts.

  2. Hypertensive crisis: when you should call for emergency help

    American Heart Association

    How we use it: The 180/120 mmHg threshold and symptoms that turn a high reading into an emergency.

  3. A clinical trial of the effects of dietary patterns on blood pressure (DASH)

    Appel LJ, et al. New England Journal of Medicine, 1997

    How we use it: The DASH eating pattern adapted to Indian meals for BP goals.

  4. Hypertension in adults: diagnosis and management (NG136)

    National Institute for Health and Care Excellence (UK)

    How we use it: Lifestyle advice, home monitoring practice and review.

Cholesterol and heart

  1. 2026 ACC/AHA/Multisociety Guideline on the Management of Dyslipidemia

    American College of Cardiology and American Heart Association, 2026

    How we use it: Heart-healthy eating and activity as the base of cholesterol care; medicine decisions stay with the doctor.

Arthritis

  1. 2019 ACR/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee

    Kolasinski SL, et al. Arthritis Care & Research, 2020

    How we use it: Exercise and weight loss of 5% or more as strongly recommended for knee and hip osteoarthritis; tai chi and balance work.

  2. 2022 ACR Guideline for Exercise, Rehabilitation, Diet, and Additional Integrative Interventions for Rheumatoid Arthritis

    England BR, et al. Arthritis Care & Research, 2023

    How we use it: Consistent exercise and a Mediterranean-style eating pattern for rheumatoid arthritis.

  3. Osteoarthritis in over 16s: diagnosis and management (NG226)

    National Institute for Health and Care Excellence (UK), 2022

    How we use it: Therapeutic exercise as a core treatment and the approach to joint pain during activity.

Yoga and breathing

  1. Common Yoga Protocol

    Ministry of Ayush, Government of India (2023 edition)

    How we use it: The order of practices, and the contraindications used to remove poses and breathing practices for specific conditions.

Sleep

  1. Recommended amount of sleep for a healthy adult (joint consensus statement)

    Watson NF, et al. American Academy of Sleep Medicine and Sleep Research Society. Sleep, 2015

    How we use it: At least 7 hours for adults, consistent timing, and the basis for shift-work adaptations.

Public health references

  1. DASH diet: healthy eating to lower your blood pressure

    Mayo Clinic

    How we use it: Plain-language framing of DASH food groups.

Mental health support

  1. Tele-MANAS national tele-mental health programme

    Ministry of Health and Family Welfare, Government of India

    How we use it: The free, 24-hour helpline (14416) shown in mood and crisis screens.

Links open the publisher's site. Source list last reviewed 25 October 2026.