Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study
Matcha, a type of green tea, has a higher amino acid content than other types of tea. We previously examined the ability of matcha to improve cognitive function in older adults and determined that continuous matcha intake improves attention and executive function. This study aimed to compare the eff...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
|
| Series: | Nutrients |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-6643/13/5/1700 |
| _version_ | 1797533741082476544 |
|---|---|
| author | Yoshitake Baba Shun Inagaki Sae Nakagawa Makoto Kobayashi Toshiyuki Kaneko Takanobu Takihara |
| author_facet | Yoshitake Baba Shun Inagaki Sae Nakagawa Makoto Kobayashi Toshiyuki Kaneko Takanobu Takihara |
| author_sort | Yoshitake Baba |
| collection | DOAJ |
| description | Matcha, a type of green tea, has a higher amino acid content than other types of tea. We previously examined the ability of matcha to improve cognitive function in older adults and determined that continuous matcha intake improves attention and executive function. This study aimed to compare the effects of matcha and caffeine and clarify the differences between these effects. The study was registered at the University Hospital Medical Information Network (UMIN000036578). The effect of single and continuous intake was compared, and the usefulness of continuous intake was evaluated under the stress condition. The Uchida–Kraepelin test (UKT) was used to induce mild acute stress, and the Cognitrax was used to evaluate cognitive function. A single dose of caffeine improved attentional function during or after stress loading. The reduced reaction time in the Cognitrax, observed following a single dose of matcha, was likely due to caffeine. The matcha group showed an increase in the amount of work after continuous intake, whereas the caffeine group only showed an increase in the amount of work for the UKT after a single dose. Ingesting matcha with caffeine improves both attention and work performance when suffering from psychological stress compared with caffeine alone. |
| first_indexed | 2024-03-10T11:19:52Z |
| format | Article |
| id | doaj.art-3cdb3138e4bb449a8d20ae70cf19f6c6 |
| institution | Directory Open Access Journal |
| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-10T11:19:52Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-3cdb3138e4bb449a8d20ae70cf19f6c62023-11-21T20:06:05ZengMDPI AGNutrients2072-66432021-05-01135170010.3390/nu13051700Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled StudyYoshitake Baba0Shun Inagaki1Sae Nakagawa2Makoto Kobayashi3Toshiyuki Kaneko4Takanobu Takihara5Central Research Institute, ITO EN, Ltd., 21 Mekami, Shizuoka, Makinohara 421-0516, JapanCentral Research Institute, ITO EN, Ltd., 21 Mekami, Shizuoka, Makinohara 421-0516, JapanCentral Research Institute, ITO EN, Ltd., 21 Mekami, Shizuoka, Makinohara 421-0516, JapanCentral Research Institute, ITO EN, Ltd., 21 Mekami, Shizuoka, Makinohara 421-0516, JapanTokyo Skytree Station Medical Clinic, Ryobi Building F4 33-13, Mukojima 3-chome, Sumida-ku, Tokyo 131-0033, JapanCentral Research Institute, ITO EN, Ltd., 21 Mekami, Shizuoka, Makinohara 421-0516, JapanMatcha, a type of green tea, has a higher amino acid content than other types of tea. We previously examined the ability of matcha to improve cognitive function in older adults and determined that continuous matcha intake improves attention and executive function. This study aimed to compare the effects of matcha and caffeine and clarify the differences between these effects. The study was registered at the University Hospital Medical Information Network (UMIN000036578). The effect of single and continuous intake was compared, and the usefulness of continuous intake was evaluated under the stress condition. The Uchida–Kraepelin test (UKT) was used to induce mild acute stress, and the Cognitrax was used to evaluate cognitive function. A single dose of caffeine improved attentional function during or after stress loading. The reduced reaction time in the Cognitrax, observed following a single dose of matcha, was likely due to caffeine. The matcha group showed an increase in the amount of work after continuous intake, whereas the caffeine group only showed an increase in the amount of work for the UKT after a single dose. Ingesting matcha with caffeine improves both attention and work performance when suffering from psychological stress compared with caffeine alone.https://www.mdpi.com/2072-6643/13/5/1700matchagreen teacaffeinecognitive functionattentionmiddle-aged and older adults |
| spellingShingle | Yoshitake Baba Shun Inagaki Sae Nakagawa Makoto Kobayashi Toshiyuki Kaneko Takanobu Takihara Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study Nutrients matcha green tea caffeine cognitive function attention middle-aged and older adults |
| title | Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study |
| title_full | Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study |
| title_fullStr | Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study |
| title_full_unstemmed | Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study |
| title_short | Effects of Daily Matcha and Caffeine Intake on Mild Acute Psychological Stress-Related Cognitive Function in Middle-Aged and Older Adults: A Randomized Placebo-Controlled Study |
| title_sort | effects of daily matcha and caffeine intake on mild acute psychological stress related cognitive function in middle aged and older adults a randomized placebo controlled study |
| topic | matcha green tea caffeine cognitive function attention middle-aged and older adults |
| url | https://www.mdpi.com/2072-6643/13/5/1700 |
| work_keys_str_mv | AT yoshitakebaba effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy AT shuninagaki effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy AT saenakagawa effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy AT makotokobayashi effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy AT toshiyukikaneko effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy AT takanobutakihara effectsofdailymatchaandcaffeineintakeonmildacutepsychologicalstressrelatedcognitivefunctioninmiddleagedandolderadultsarandomizedplacebocontrolledstudy |