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Precision Bone Health Tracker

Just Enough

Enough, not too much.

Set your targets

Your calcium needs change with age and differ between men and women at various life stages. A few quick details will set your daily target and your upper limit.

Your daily target is the amount of calcium to aim for each day.

Your upper limit is the most you should take in a day, including from food and supplements. More calcium doesn’t do your bones more good. In fact, studies show it can cause harm in other areas.

Sources: Dietary Reference Intakes for Calcium and Vitamin D, set by the US National Academies and republished by the NIH Office of Dietary Supplements.

Why track every day

A single day doesn’t tell you much. Your calcium intake isn’t the same every day, and adding it up from memory is never accurate. Bone changes slowly. What’s important is consistency.

This personalizes the app and stays on this device.

This tailors your figures to the clinical guidelines, which set different amounts for men and women between 51 and 70. Below age 51 and above age 70, the calcium figures for men and women are identical.

Free for the first 14 days. After that, subscribe for $49 a year. Either way, your log stays on this device.

Used Just Enough before, on another device? to bring your log across.

Today

Today so far

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Add your supplements and today’s food below.

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Set up

Setting up Just Enough takes less than 2 minutes. After that, your daily logging takes just seconds. If anything changes — your supplements, dose, location or other details — come back here and update them.

    Log today

    Tap each button to log and track your bone health supplementation. The colour shows how you’re tracking today.

    Not logged Too little Just Enough Too much

    Today’s supplements

    Add a supplement

    Check the bottle for the form, the strength, and the serving size. (Serving size especially. Some labels state their figures per two tablets, not one.)

    Then add it in one of two ways: 1. Search for your supplement, or 2. Enter the details from your supplement label, whatever is easiest.

    1. Search for your supplement

    Type a brand or an ingredient, such as “calcium carbonate” or “calciferol”. Matches appear below — tap the one you take, then say how often.

    2. Enter details from label

    Choose the form, the amount per tablet, and then add how often you take it. Pick Calcium + D for a multivitamin, or any tablet with both in it.

    Your supplements

    Weekly & monthly

    Tick these off the day you take them. The dose is then spread across the days it actually covers, and the app tells you when the next one is due — miss it and your figures drop, which is the truth. Took two this week? Tap it twice. The count follows what you actually took, not the schedule you set.

    Every day

    Tap what you’ve had today.

    Nothing added yet.

    Always consult your healthcare professional before you take supplements.

    Today’s food

    Tap what you eat frequently. One tap adds it to the top of your food list, where the × removes it again.

    Tap foods as you eat. You’ll quickly notice that only a handful of foods are naturally rich in calcium, so tracking your daily intake takes just a few easy taps.

    Most common

    Find more food

    Figures from USDA FoodData Central and McCance & Widdowson (CoFID).

    This week’s strength work

    Calcium builds bone. Loading bones tells your body to keep them strong.

    Log activity

    Impact 0 of most days

    Resistance 0 of 2–3 days

    Your week

    Aerobic 0 min

    Balance 0 of 2 days

    What counts

    Impact. Landing and stepping — jogging, hopping, stamping, stairs. At least 50 impacts in a session.

    Resistance. Muscle pulling hard against bone — weights, bands, your own body weight. Every muscle group, including your back.

    Aerobic activity has no documented benefit for bones. But it is good for the heart and overall well-being. Walking is weight-bearing and worth doing, though it does not load bone the way impact and resistance do. Swimming and cycling do not load it at all.

    Balance. A fragility fracture is one that follows a fall from standing height or less. Balance work is how you avoid the fall.

    If you have osteoporosis, a previous fracture, back pain or balance problems ask a physiotherapist or your doctor before starting high-impact or heavily loaded exercise. What counts, above, is written for people without those.

    Outdoors today

    Sunlight makes vitamin D, and vitamin D is what lets you absorb the calcium. How much sun you need — and whether you need to cover up — depends entirely on where you are and what time of year it is.

    Set your location to see the UV. The sun’s angle is worked out on this device from where you are and the time of year — nothing is sent anywhere.

    Or select the nearest city

    UV now

    Peak today at

    0 minutes
    outside today

    Your skin

    Sun is not the safe way to fix a deficiency. Skin cancer risk rises with UV exposure, and the amount of sun needed to correct a real shortfall is more than most doctors would advise you to take. If your levels are low, a supplement is the safer route. This band is here so you know when covering up matters — not to talk you into sunbathing.

    Staying Power

    A heart appears every day you log, helping you build a consistent bone-health habit. Bone health changes slowly, and what you do today — and keep doing every day — can make a difference over time. That’s why you need Staying Power. Keep logging, one day at a time. Your bones will thank you.

    0 days in a row
    of logged days in your calcium range

    Bone fact of the day

    Your doctor set a different target

    Enter it below, and the app will use it instead of the published guidelines.

    Just Enough calculates what you log against your doctor’s recommendation, or it defaults to the published guidelines.

    Add your scan dates

    Why there’s an upper limit

    After 40, calcium remains essential for keeping your bones strong, but more is not always better. There are two numbers worth knowing.

    Recommended daily intake — how much calcium you should aim to get each day. Most adults need around 1,000–1,200 mg a day, preferably from food. Your needs vary with age and sex.

    Upper limit — the most calcium you should regularly consume each day. The upper limit is a safety threshold, not a target. It doesn’t mean that going over it occasionally will cause harm, but regularly consuming too much calcium won’t make your bones stronger and may increase your risk of kidney stones. The effect of calcium supplements on heart health is still debated — some studies suggest a link, while others don’t.

    That’s why it’s important to know how much calcium you’re getting from food and supplements combined, rather than simply assuming more is better.

    And calcium is only part of the picture. Strong bones also depend on enough vitamin D, protein and magnesium, together with regular impact and resistance exercise. They all work together to maintain bone strength and help reduce fracture risk.

    The two numbers that matter

    Source: National Academy of Medicine intake recommendations, as summarised by the Harvard T.H. Chan School of Public Health.

    What’s established

    Intake above roughly 2,000 mg a day is linked to an increased risk of kidney stones. There is also no bone benefit to going above the recommended amount — more calcium does not mean stronger bones.

    Sources: Dietary Reference Intakes for Calcium and Vitamin D, National Academies · Calcium fact sheet, NIH Office of Dietary Supplements.

    What’s still argued

    Whether calcium from supplements contributes to arterial plaque is genuinely contested. Some studies find an increased risk of heart problems with high supplemental intake; others find none. Anyone telling you it’s settled — in either direction — is ahead of the evidence.

    The two findings most often set against each other: MESA, ten-year follow-up, which associated supplement use with increased coronary artery calcium, and the Framingham study, which found none. Overview: Harvard Nutrition Source.

    Why 500 mg at a time

    Your body absorbs calcium best in doses of around 500 mg or less. A single large tablet is partly wasted — splitting the same amount across the day increases absorption.

    Absorption efficiency falls as the dose rises: Calcium fact sheet, NIH Office of Dietary Supplements.

    More on bone health →
    Every figure, and where it comes from →

    Backups and syncing

    Everything you log stays in this browser, so clearing your browsing data deletes it.

    Save a copy every couple of weeks so you can reinstate it should you get a new phone or device.


    Sync devices

    Turn on syncing so you can use Just Enough seamlessly on any device.

    Just Enough Precision Bone Health Tracker.

    This app shows your intake against published global guidelines. It does not diagnose, is not medical advice, and does not prevent osteoporosis. Talk to your doctor about your bone health and supplementation.

    © 2026 Just Enough

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