Your 14 days are up

Never take too much.
Never take too little.

You've been tracking for two weeks. Your history is saved and waiting — nothing is lost, and it's all still here when you unlock.

Just Enough

Unlock

That code isn't right. Check the email from Lemon Squeezy.

Precision Bone Health Tracker

Just Enough

Enough, not too much.

Two quick questions

Both of your lines depend on these. The amount you need changes after 50 — and it isn't the same for men and women.

Today

0of — mg

Nothing logged yet

Add your supplements and today's food below.

0 Need — Ceiling —
0
mg from food
0
mg from supplements
0
IU vitamin D

Bone fact of the day

Today's supplements

Read the form, the strength and the serving size off the panel on the back. Serving size especially — some labels state their figures per two tablets, not one.

Common ones — tap to add

Or enter yours

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.

Taken daily — tap what you've had

Nothing added yet. Your bottle will say the form and the strength.

Today's food

Tap things as you have them — don't save it up for the evening. Rough is fine: food calcium is the half that doesn't need to be exact.

You don't have to log everything you eat. Almost no food carries meaningful calcium — bread, meat, rice, salad and most fruit are near zero. It's dairy, tinned fish with the bones in, tofu, a few greens and fortified things. On a normal day that's two or three taps, not a food diary.

Most common

Everything else

This week's strength work

Calcium is the material. Loading the bone is what tells the body to keep it there. Two to three sessions a week — weights, bands, or your own body weight.

0 of 2–3 sessions
this week

What counts. Anything that makes a muscle pull hard against a bone — squats, press-ups, a resistance band, carrying shopping up stairs, a gym machine. Walking and swimming are good for you but don't load bone the same way, so they don't count here.

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.

This needs to know roughly where you are. The strength of the sun at 6 a.m. in Reykjavík and noon in Nairobi are not remotely the same thing, so a fixed “fifteen minutes” would be wrong for most people most of the year. Your location is used on this device only and is never sent anywhere — the sun's angle is worked out here, offline.

Or pick the nearest city

—
— UV now

Peak today — at —

0 minutes
outside today

Your skin

Melanin is sun protection you were born with. Deeper skin needs noticeably longer in the sun to make the same vitamin D — and burns less readily.

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

Last 28 days. A square fills the moment you use the app that day — this is about the habit, not about being perfect.

Not logged Too little Just enough Too much
0 days running
— of the last 30 days
between your lines

Why there's a ceiling

After the age of 40, calcium remains essential for maintaining strong bones, but more is not always better. Most adults need 1,000–1,200 mg of calcium per day, preferably from food, while intakes above 2,000 mg daily provide no additional bone benefit and may increase the risk of kidney stones. Healthy bones also depend on adequate vitamin D, protein, magnesium and regular weight-bearing exercise, all of which work together to support bone strength and 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.

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.

See the Harvard Nutrition Source review of calcium for the competing findings.

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 gets more of it in.

YOUR CONTENT GOES HERE. This section is structured and ready for your referenced writing — headings, paragraphs and a reference line per claim. Replace the text above and add as many sections as you like. Everything below the heading “Why there's a ceiling” is yours.

Just Enough — a Precision Bone Health Tracker.

This app shows your intake against published national intake guidelines. It does not diagnose anything, it is not medical advice, and it does not claim to prevent osteoporosis. Talk to your doctor about your own situation, especially before changing what you take.

0 mg
Nothing logged yet