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GunkangFirst · Health checks for people in their 50s and 60s

Health comes first,
so start with how you feel today

Quickly check the pain that has been bothering you, and turn the supplements you already take into a simple daily schedule.

Start the pain self-check Build my supplement schedule
  • Based on public agencies and medical societies
  • No sign-up, no personal data stored
  • Free for everyone
Pain self-checkGauge where you stand from knee, shoulder, back, neck, or wrist symptoms Supplement scheduleWhen to take each one, and which combinations to space apart Daiso supplementsIngredients, doses, and prices of Daiso Korea products compared Senior exerciseFive recommended exercises: benefits, how-to, and precautions

SELF CHECK

Pain Self-Check and Supplement Schedule

Choose a tool and start right away.

Where does it hurt?

Start by choosing one area that is bothering you.

HEALTH INFO

Supplement Facts and Health Guides

Before choosing a supplement, take a closer look at the evidence and the precautions.

All senior exercise guides → All retirement living events → All Daiso supplement guides →
Health BasicsFlu Season 2026 in Korea: How Are Flu Symptoms Different from COVID-19 and a Cold?The early epidemic and the 48-hour antiviral rule Health BasicsKorea's Free 2026–27 Flu and COVID-19 Vaccines: Dates for 65+ and Getting Both at OnceStart dates by age and what to know about same-day shots Evidence CheckKorea Plans to Ban Mixing 15 Liver-Caution Supplement Ingredients: Is It Safe to Take Garcinia and Green Tea Extract Together?The proposal and how to check your supplements Evidence CheckWegovy and Mounjaro Side Effects: What Are the Warning Signs of Gallstones and Pancreatitis?Korean audit data and clinical trial findings Health BasicsScrub Typhus Symptoms: How Is It Different from a Fall Cold or Flu?The black scab to look for after time outdoors Evidence CheckCholesterol-Lowering Supplements: Do They Work?LDL targets and what red yeast rice and sterols really do Evidence CheckMenopause Supplements: Do They Ease Symptoms?Evidence behind approved ingredients vs. hormone therapy Evidence CheckMilk Thistle Benefits: Does It Lower Liver Enzymes?Checkup liver ranges and what studies show Pain InfoCarpal Tunnel Syndrome Symptoms: Which Kind of Hand Numbness Is a Warning Sign?A self-check and how it differs from a pinched neck nerve Pain InfoPlantar Fasciitis: Why the First Steps Hurt, and Stretches That HelpA heel pain self-check and stretches NutritionThe Slow-Aging Diet: What to Eat and HowCore principles and how to build a plate NutritionBlood Sugar Spikes: Can Meal Order Reduce Them?Normal ranges and whether meal order works Evidence CheckDoes Creatine Help Muscle in Your 40s and 50s?What studies show with strength training Pain InfoFrozen Shoulder Symptoms: How Is It Different from a Rotator Cuff Tear?Self-check and home stretches Health BasicsShingles Vaccine: Should You Get It in Your 50s?Live vs. recombinant vaccines, and dementia research NutritionVitamin D Deficiency Signs and Intake After 65Why levels drop with age, and how much older adults need Evidence CheckGlucosamine and Omega-3 for Knees: What the Evidence SaysMaking sense of mixed study results How to TakeDoes It Matter When You Take Calcium?How to keep it apart from iron and zinc NutritionOmega-3 Benefits and Daily Intake After 65Where heart research stands today Evidence CheckBifidobacteria Probiotics: What the Studies ShowFrom constipation relief to choosing and using them safely Evidence CheckGlutathione: Popular Claims vs. RealitySeparating rumor from published findings Evidence CheckEnzyme Supplements and Encapsulation: How They Work and What the Evidence SaysAcid-resistant formulations and what studies found NutritionLutein and Zeaxanthin: Benefits, Daily Intake, and a Caution for SmokersMacular pigment and the AREDS2 findings Evidence CheckAstaxanthin: Does It Really Help Tired Eyes?Haematococcus claims and the limits of the evidence BasicsWhat Is a Health Functional Food in Korea?How it differs from ordinary food, and the official mark Seller's GuideWhat Does It Take to Sell Health Functional Foods in Korea?Business registration, hygiene training, and confusing certificates Everyday TipsHow to Dispose of Expired Supplements ProperlyFrom medicine take-back bins to sorting the packaging DaisoSupplements at Daiso Korea: What's on the Shelf and Why So Cheap?The expanded lineup and what to check before buying DaisoDaiso Magnesium: How Do the Products Differ?Ingredients, dose, and price compared DaisoDaiso Omega-3: How Do the Manufacturers Differ?Daewoong Pharmaceutical vs. Chong Kun Dang Health DaisoDaiso Vitamin D 4,000 IU: Is One Tablet a Day Too Much?The upper limit and which products overlap DaisoDaiso Probiotics: How to Compare CFU Counts and PricesCost per day and how to read guaranteed counts DaisoDaiso Running Gear: Can You Start Running for KRW 20,000?Prices and how to start running safely DaisoDaiso Foam Rollers and Massage Balls: How to Choose and Use ThemTypes, how to roll, and where not to Senior ExerciseWalking for Older Adults: How Many Steps a Day?From good posture to a daily step goal Senior ExerciseChair Squats for Leg Strength in Later LifeA safe lower-body exercise with just a chair Senior ExerciseStrength Training with a Resistance Band for Older AdultsFour seated band moves for the upper and lower body Senior ExerciseBalance Exercises That Help Prevent FallsSingle-leg stands, heel-to-toe walking, heel raises Senior ExerciseIs Water Exercise Good for Sore Knees?Pool walking and moves that ease the load on joints Senior ExerciseMuscle Loss on GLP-1 Weight-Loss Drugs: Can Exercise Prevent It?How to protect muscle while the weight comes off Upcoming Event2027 European Retirement Relocation ConferenceMarch 2027, Algarve, Portugal · Fast Track Europe Upcoming Event2027 Panama Retirement Relocation ConferenceJanuary 2027, Panama City · Live and Invest in Panama Past EventJipconomy Expo 2026: Senior Housing Exhibits in ReviewSept–Oct 2026, COEX Seoul · Senior housing seminars Past EventThe 49th Overseas Immigration & Investment Expo in ReviewSeptember 2026, COEX Seoul · Philippine retirement visa session

HOW TO USE

How to Use GunkangFirst

If this is your first visit, start here.

1

Start with the pain self-check

Pick the area that has been bothering you lately (knee, shoulder, lower back, neck, or wrist) and tick the symptoms that apply. You will get a quick sense of whether it is fine to keep an eye on things or time to see a doctor, along with nutrients that may be worth considering.

2

Build a schedule from what you already take

Select your usual supplements and we will lay them out across the day, from first thing in the morning to bedtime. You will also see which ones pair well and which ones should be taken apart.

3

Check the FAQ for anything else

Answers to the questions first-time visitors ask most are collected below.

FAQ

Frequently Asked Questions

Tap a question to see the answer.

Can the pain self-check replace a doctor's diagnosis?

No. The result is a general guide to help you check in on yourself, not a medical diagnosis. If symptoms persist or worry you, please see an orthopedic specialist or another doctor for a proper examination.

Where does the supplement information come from?

We research and summarize trusted sources in Korea and abroad, including Korea's Ministry of Food and Drug Safety, the Korea Disease Control and Prevention Agency, the Dietary Reference Intakes for Koreans, the NIH Office of Dietary Supplements, Mayo Clinic, and Cochrane. See the About page for details.

Is any of my personal information stored?

No. There is no sign-up or log-in, and nothing you check or select is sent to a server. Only your text-size setting is saved, in your own browser. See the Privacy Policy for details.

What if several areas hurt at once?

Check one area at a time, then tap 'Check another area' to continue. If several joints are swollen or painful at the same time, it is safest to see a doctor regardless of the self-check result.

I already take medication. Can I take supplements too?

The supplement schedule only covers general interactions between supplements. If you take medication such as blood pressure drugs or anticoagulants, always ask your doctor or pharmacist about interactions first.