Table 2. Genetic test items allowed for DTC-GT that were added after the 1st and 2nd DTC-GT certification systems.
| Classification | First approved items (‘16.6) (12 items) | Items added after the 1st DTC-GT certification system (‘20.2) (56 items in total) | Items added after the 2nd DTC-GT certification system (‘20.11) (70 items in total) |
|---|---|---|---|
| Nutrients | Vitamin C concentration | Vitamin D concentration | Vitamin A concentration |
| Coenzyme Q10 concentration | Vitamin B6 concentration | ||
| Magnesium concentration | Vitamin B12 concentration | ||
| Zinc concentration | Vitamin E concentration | ||
| Iron storage and concentration | Vitamin K concentration | ||
| Calcium concentration | Tyrosine concentration | ||
| Potassium concentration | Betaine concentration | ||
| Arginine concentration | Selenium concentration | ||
| Fatty acid concentration | Lutein & Zeaxanthin concentration | ||
| Exercise | Muscle fitness | ||
| Muscle development ability | |||
| Grip force | |||
| Suitability for aerobic exercise | |||
| Ability for short-distance running | |||
| Ability to recover after exercise | |||
| Suitability for endurance exercise | |||
| Risk of ankle injury | |||
| Skin/Hair | Pigmentation | Freckles | |
| Hair thickness | Acne | ||
| Skin aging | Tanning after sun exposure | ||
| Skin elasticity (Removed through the first certification project) | Skin inflammation | ||
| Hair loss | Stretch mark/keratin | ||
| Alopecia areata | |||
| Dietary habits | Appetite | ||
| Satiety | |||
| Sensitivity for salty taste | |||
| Sensitivity for bitter taste | |||
| Sensitivity for sweet taste | |||
| Personal traits | Caffeine metabolism | Alcohol metabolism | |
| Wine preference | |||
| Alcohol dependence | |||
| Nicotine metabolism | |||
| Caffeine dependence | |||
| Morning or night person | |||
| Sleep habits/time | |||
| Alcohol flush | |||
| Insomnia | |||
| Pain sensitivity | |||
| Healthcare | Triglyceride concentration | Susceptibility to degenerative arthritis | Bone mass |
| Cholesterol | Motion sickness | Abdominal obesity (hip-waist ratio) | |
| BMI | Obesity | Weight loss effect after exercise | |
| Blood pressure | Uric acid | Possibility of weight recovery after weight loss | |
| Blood sugar | Percentage of body fat | ||
| Lineage | Ancestry |
DTC-GT, direct-to-consumer genetic testing; BMI, body mass index.