Variable

Baseline

Week 2

Week 4

Week 6

Attentive

Supplement

6.4 ± 0.39

6.7 ± 0.41

6.3 ± 0.39

6.8 ± 0.34

Placebo

6.0 ± 0.39

6.6 ± 0.26

6.5 ± 0.30

5.9 ± 0.53

Tired*

Supplement

6.4 ± 0.45

5.1 ± 0.48

5.4 ± 0.56

5.4 ± 0.56

Placebo

6.4 ± 0.39

4.4 ± 0.31

5.1 ± 0.41

4.1 ± 0.43

Alert**

Supplement

6.8 ± 0.36

6.6 ± 0.33

6.1 ± 0.49

6.8 ± 0.31

Placebo

5.6 ± 0.36

6.0 ± 0.39

6.4 ± 0.27

6.1 ± 0.49

Groggy

Supplement

4.8 ± 0.55

4.1 ± 0.56

4.2 ± 0.55

4.1 ± 0.52

Placebo

5.4 ± 0.54

3.7 ± 0.44

3.9 ± 0.57

3.5 ± 0.61

Focused

Supplement

6.1 ± 0.36

6.5 ± 0.42

5.8 ± 0.53

6.5 ± 0.47

Placebo

5.6 ± 0.35

6.3 ± 0.40

6.2 ± 0.37

6.0 ± 0.26

Sluggish*

Supplement

4.8 ± 0.57

4.0 ± 0.51

4.4 ± 0.57

3.9 ± 0.55

Placebo

5.4 ± 0.55

3.5 ± 0.42

3.6 ± 0.53

3.8 ± 0.60

Energetic*

Supplement

5.4 ± 0.44

5.6 ± 0.41

5.6 ± 0.36

6.4 ± 0.32

Placebo

4.7 ± 0.34

6.2 ± 0.43

5.8 ± 0.35

6.0 ± 0.41

Lethargic

Supplement

4.1 ± 0.63

3.9 ± 0.56

3.3 ± 0.50

3.4 ± 0.41

Placebo

4.4 ± 0.50

3.4 ± 0.46

3.3 ± 0.50

3.1 ± 0.54

Enthusiastic

Supplement

6.4 ± 0.41

6.2 ± 0.42

5.8 ± 0.45

6.5 ± 0.42

Placebo

5.8 ± 0.32

6.8 ± 0.32

6.5 ± 0.30

5.9 ± 0.42

Depressed

Supplement

2.1 ± 0.45

2.1 ± 0.5

2.4 ± 0.57

2.0 ± 0.47

Placebo

2.8 ± 0.58

2.3 ± 0.58

2.3 ± 0.52

2.3 ± 0.62

Well Rested*

Supplement

4.4 ± 0.40

6.0 ± 0.52

4.8 ± 0.32

5.9 ± 0.50

Placebo

3.7 ± 0.34

5.6 ± 0.53

5.6 ± 0.48

6.1 ± 0.51

Fatigued*

Supplement

5.1 ± 0.47

3.9 ± 0.55

3.8 ± 0.45

3.8 ± 0.59

Placebo

5.5 ± 0.48

3.2 ± 0.47

4.4 ± 0.44

3.5 ± 0.52