Guide

No, phone cameras cannot directly check blood sugar; you still need approved meters or CGM devices for accurate glucose readings.

At home, you can estimate body fat using BMI, waist measurements, body fat scales, and simple visual checks to track trends between medical checkups.

You can check your Dexcom CGM on a compatible phone by installing the right Dexcom app, pairing your sensor, and viewing live glucose data on screen.

You can estimate body fat online by combining tape measurements, scale data, and photo tools, then treating the result as a rough guide.

Cortisol levels are checked with blood, saliva, or urine tests timed to your daily rhythm to find unusually high or low stress hormone levels.

You check insulin levels through lab blood tests ordered by a health professional; home tools only give indirect clues through glucose and related data.

To check electrolytes, your doctor orders a blood electrolyte panel and may use urine tests plus symptoms to spot imbalances early.

To check for ketones, use urine strips or a blood ketone meter, then act on results using your diabetes sick-day plan or medical advice.

You can check if in ketosis by testing blood, breath, or urine ketones and tracking body changes like steady energy and less hunger.

To check ketone levels, use a blood or urine test and follow your sick day plan if results are raised or you feel unwell.