Normal hydration, no alcohol or extremes
Drink as you normally do. Do not intentionally overhydrate or dehydrate. Avoid alcohol and excessive caffeine the day before because they can affect body water.
InBody 970/970S preparation
How to prepare for an InBody measurement
The goal is not laboratory perfection. The goal is to remove the biggest sources of variation and keep repeat visits comparable. Then your results reflect the real trend rather than a single day of hydration, food or training fatigue.
Short version: avoid a large meal, hard exercise and heavy fluid intake for about 3 hours, wear light clothing and do not use lotion on hands or feet.
Checklist
Quick checklist before your visit
Use this if you only need the practical version. The detailed explanation follows below.
Avoid extreme training and sauna
After a very hard workout, race, sauna or heavy sweating, it is better to postpone the measurement. Major strain can change body water and glycogen for longer than a few hours.
No large meal and no exercise
Food and intense movement shortly before the test change body weight, water distribution, blood flow and temperature. For comparability, keep a 3-hour gap when possible.
No sudden heavy fluid intake
Avoid drinking a large amount immediately before the test. If you are clearly dehydrated after waking up, drink earlier so your body has time to absorb it.
Restroom, 5-10 minutes upright, clean hands and feet
Use the restroom, stand or move normally for a few minutes and do not use lotion on hands or feet. The measurement is done barefoot.
Premium add-ons
If you choose Premium measurement
Premium adds Max Pulse, the BPBIO750 blood pressure monitor and InGrip next to InBody. The core InBody preparation still applies; for the resting cardiovascular tests, calm arrival, caffeine, nicotine and rushing right before the visit matter even more.
Max Pulse: resting pulse, HRV and pulse wave
Ideally avoid hard training, alcohol and a large caffeine dose in the hours before testing. Sit quietly for a few minutes before the reading, do not talk or move, breathe normally and, if possible, avoid nail polish or gel on the finger used by the sensor.
BPBIO750: blood pressure and pulse at that moment
Avoid exercise, nicotine and coffee or energy drinks for at least 30 minutes before the reading. Use the restroom, sit quietly for a few minutes and do not talk during the test. Blood pressure is sensitive to rushing, stress, a full bladder and body position.
InGrip does not need special preparation
Grip strength testing does not require a special routine. Just follow the staff instructions for both hands. If you have pain, a recent hand injury or want to compare strength over time, mention it before testing so the result has the right context.
Why preparation changes the result
InBody uses bioelectrical impedance analysis. The device sends a very low electrical current through electrodes and measures resistance in body segments. Water conducts differently than fat tissue, so hydration, food, exercise, skin temperature and electrode contact all matter.
Hydration affects fat-free mass estimates
Dehydration can make fat-free mass appear lower. Sudden overhydration can make some values look better than your usual baseline.
Training shifts water and glycogen
After exercise, blood flow, temperature, sweating and muscle glycogen can all change. This can affect muscle mass, body fat percentage and segmental outputs.
Food and fluids add temporary weight
Stomach, bowel and bladder contents are not muscle or fat, but they still contribute to current body weight. That is why meal timing and restroom use matter.
Electrode contact is essential
Socks, pantyhose, oily lotion, very dry skin or calluses can reduce conductivity. Feet and hands need clean direct contact with electrodes.
Practical preparation
What to do and what to avoid
What to do before testing
Keep your usual routine
The best trend data comes from a normal day. Do not experiment with water, salt, carbohydrates or supplements just because you are testing.
Come at a similar time of day
Morning and evening results can differ because body water shifts during the day. For comparison, consistency matters more than a perfect time.
Stand or move normally for 5-10 minutes
After long sitting or lying down, give your body a few minutes to settle fluid distribution. A short walk and reception wait usually help.
Use the restroom
Bladder and bowel contents add temporary weight. It is a small step, but useful for repeat measurements.
Know your accurate height
Height is part of the evaluation. Enter it accurately on the first test and keep it consistent on later visits unless it has truly changed.
What to avoid before testing
Food 2-3 hours before
Guidance varies between 2 and 3 hours. At MojeInBody, we recommend aiming for 3 hours when you want reliable comparison over time.
Intense exercise before the test
Avoid exercise for at least 3 hours. After a very hard workout, race, long run or heavy strength session, postpone until the next day or full recovery.
Alcohol and excessive caffeine for 24 hours
Alcohol and high caffeine intake can act as diuretics. A single usual morning coffee is less of an issue if you keep conditions consistent every time.
Sauna, hot bath or shower immediately before
Heat, cold and sweating change skin blood flow and body water. Wait until your body returns to its normal state.
Lotion, ointment or oil on hands and feet
Oily skin reduces electrode contact. If your skin is dry, use an InBody wipe on site rather than applying cream.
Major diet changes right before testing
Low-carb dieting, very salty meals, glycogen depletion or sudden hydration changes can shift muscle water. Note it if anything changed.
Safety
Contraindications and when to postpone
InBody uses a weak electrical current. For healthy people, the test is non-invasive, but some situations require postponing or medical consultation. If you are unsure about measurement safety, consult your doctor before the visit.
Do not test without prior consultation
- pacemaker, implanted defibrillator or another implanted electronic medical device
- life-supporting or monitoring electronic device
- pregnancy; the manufacturer does not recommend testing during pregnancy, and some manuals specifically mention the first trimester
- any situation where you cannot safely stand on the device and hold the handles
Results may be skewed
- menstruation or clear water retention; the main issue is comparability rather than safety
- fever, acute infection, chills or significant illness
- edema, dehydration, diuretics or medication that strongly affects body water
- large metal or cosmetic implants - they can affect segmental and fat-free mass values
Better postpone
- immediately after hard training, race, sauna or heavy sweating
- right after a large meal or sudden heavy fluid intake
- fresh open wound on the foot or palm where the electrode contact happens
What to wear and remove
The measurement is done in regular clothing, but barefoot. The scale sees your current total weight, so heavy items can shift the result.
Best clothing
Light T-shirt, leggings, shorts or light trousers. If you want to minimize the effect of clothing on body weight, you can also test in underwear. For repeat testing, wear a similar type of clothing each time.
Remove before testing
Shoes, socks, pantyhose, watch, heavy jewelry, belt, hoodie or jacket, phone, wallet, keys and anything heavy in pockets.
Hands and feet matter
Feet and hands need direct contact with electrodes. Socks, pantyhose, oily cosmetics and very dry skin can reduce contact quality.
Testing posture
Stand upright on the foot electrodes, hold the handles and keep your arms slightly away from your body. Stay still and do not lean on anything.
What happens on site
- 1Tell reception you are here for InBody. If your account is ready, check-in is faster.
- 2Remove shoes, socks and heavy items. Hands and feet may be wiped if needed.
- 3Step on the electrodes, weight is measured and your height and basic details are entered or confirmed.
- 4Hold the handles, place your thumbs on the electrodes and keep your arms slightly away from your body.
- 5Stay still until the test ends. The measurement itself is short; depending on model, generally seconds to a couple of minutes.
- 6You get the result on site and at MojeInBody it is also saved to your online portal for trend tracking.
Repeat testing: more useful than one perfect number
One test is a good baseline. InBody becomes most valuable when you compare visits under similar conditions.
Use the same device
Different devices and models can produce different outputs. For trends, stick with the same InBody 970/970S line and process.
Keep time and routine similar
If your first test was in the morning before breakfast, repeat that. If afternoons work for you, keep the afternoon routine consistent.
Watch the trend, not a single fluctuation
Small changes between two visits can be water, food, menstrual cycle or recovery. Several measurements tell a clearer story.
Reasonable frequency
During active training or nutrition changes, 2-4 weeks can make sense. For slower tracking, 4-6 weeks is often enough.
If preparation was not perfect
You do not need to cancel every visit because the day was not ideal. Just keep the context with the result.
The first test can still be a baseline
Even imperfect conditions can start your history. Just remember what may have influenced the numbers.
Be stricter for comparison visits
When you want to evaluate progress, prepare more consistently next time. Comparability matters more than the absolute number.
Note what was different
Training, menstruation, sauna, illness, poor sleep or a large meal are not failures. They are context for your own comparison. In the online portal, every measurement has a private note field.
FAQ
Do I need to be fully fasted?
No need to starve all day. Avoid a large meal for about 3 hours. If you come in the morning, testing before breakfast is very comparable.
Can I drink coffee?
Avoid high caffeine intake. If one regular morning coffee is part of every test day, consistency is more important than a one-off ritual change.
Does menstruation matter?
It can shift water-related values. For long-term trends, test outside menstruation or at least in the same cycle phase.
Do metal implants matter?
Implanted electronic devices are a major contraindication. Non-electronic metal implants may mainly affect segmental outputs.
Can I test after a shower?
Not immediately after a shower, hot bath or sauna. Heat, cold and sweating change blood flow and body water. Wait until your body is back to normal.
What should I eat and drink before an InBody test, and how far in advance?
Have your last meal about 2–3 hours before the test, and keep it light rather than a large meal or a lot of fluids at once. Food and drink consumed right before testing can temporarily skew results because they affect hydration and tissue conductivity.
Can I drink alcohol before an InBody test?
It's best to avoid alcohol for at least 24 hours before the test. It affects your body's hydration, which can distort the measured body water and your overall result.
Can I exercise before an InBody test?
Avoid intense exercise roughly 6–12 hours beforehand — sweating and fluid shifts into the muscles temporarily change the results. If you're retesting for comparison, try to keep a similar activity level before the test each time.
What's the best time to test — morning or evening?
The gold standard is testing in the morning, fasted, right after waking up and using the bathroom, when the body is most stable. If you test repeatedly, keeping the same time of day and similar conditions each time matters even more than the exact hour, since that's what keeps results comparable.
When should I postpone the measurement?
Postpone it if you have a fever or an acute illness, have just had intense physical exertion, or recently used a sauna or hot bath — all of these change hydration and can meaningfully distort the result. If you have health concerns or are unsure, check with a doctor or the professional performing the test.
No booking needed
Want results that are easy to compare next time?
Create your account before the first visit, come under similar conditions and keep your measurements in the portal. The trend is where InBody becomes most useful.
Result on site · history in the portal