| (El Sharkwy & Sharaf El-Din, 2019) |
Intervention, n = 140 Control, n = 140 |
3 g LC daily |
150 mg/day CC plus oral LC 3g and metformin 850 mg (1 tablet daily) |
150 mg/d CC plus metformin and placebo capsules |
12 weeks |
| (El Sharkwy & Abd El Aziz, 2019) |
Intervention, n = 82 Control, n = 82 |
3 g LC daily |
150 mg/day of CC plus 3 g of oral LC daily, and placebo sachets |
150 mg/day of CC from day 3 until day 7 of the menstrual cycle plus 600 mg of oral N-acetylcysteine three times daily, and a placebo capsule |
12 weeks |
| (Ismail et al., 2014) |
Intervention, n = 85 Control, n = 85 |
3 g LC daily |
250 mg CC from day three until day seven of the cycle plus LC 3 g daily |
250 mg CC with placebo |
12 weeks |
| (Jamilian et al., 2017) |
Intervention, n = 30 Control, n = 30 |
250 mg LC |
250 mg carnitine supplements |
Placebos (cellulose) |
12 weeks |
| (Jamilian et al., 2019a) |
Intervention, n = 26 Control, n = 27 |
1,000 mg LC daily |
LC 1,000 mg/d plus 200 mg/d chromium as chromium picolinate |
Placebo |
12 weeks |
| (Jamilian et al., 2019b) |
Intervention, n = 27 Control, n = 27 |
1,000 mg LC daily |
200 µg/day chromium picolinate plus 1,000 mg/day LC |
Placebo (starch) |
12 weeks |
| (Samimi et al., 2016) |
Intervention, n = 30 Control, n = 30 |
250 mg LC |
250 mg LC (capsule range 237–275 mg) |
Placebo (cellulose) |
12 weeks |
| (Talari et al., 2019) |
Intervention, n = 30 Control, n = 30 |
250 mg LC daily |
250 mg/day of LC |
Placebo |
12 weeks |
| (Kortam, Abdelrahman & Fateen, 2020) |
Intervention, n = 47 Control, n = 47 |
3g LC daily |
Oral CC (50 mg tablet, two times per day) plus oral LC supplementation (1 g tablet, three times per day) |
Oral CC only (50 mg tablet, two times per day). |
Not stated |
