Table 1.
A summary of the research studies conducted on onions or onion extracts and their reported effects on testosterone.
| (Onion or Onion Derivative) | Dose (Mode of Treatment) | Duration | Population | Effect on Testosterone | Reference |
|---|---|---|---|---|---|
| Onion juice | 2, 4, and 6 mL day−1 (Orally) | 10 days | Male albino rats | (+) | [20] |
| Onion juice | 0.5 and 1 g rat−1 day−1 (Orally) | 20 days | Wistar male rats | (+) | [21] |
| Onion | 15 mg kg−1 day−1 (Orally) | 4 weeks | Streptozotocin-induced diabetic | (+) | [22] |
| Onion juice | 3 mL day−1 rat−1 (Orally) | 4 weeks | Lamotrigine-induced male rats | (+) | [23,24] |
| Aqueous extract of onion | 1 mL of the extract/100 g of body weight (Orally) |
8 weeks | Male rats with aluminum-induced reproductive toxicity | (±) | [25] |
| Aqueous extract of onion | 1 and 2 mL rat−1 (Orally) | 4 weeks | Rats | (±) | [26] |
| Aqueous extract of onion | 1 mL/100g of body weight (Orally) | 4 weeks | Male rats with cadmium-induced organ toxicity | (±) | [27] |
| Onion juice | 1 and 2 mL day−1 rat−1 (Orally) | 20 days | Adult male abino rats | (+) | [28] |
| Onion juice | 3 mL rat−1 (Orally) | 60 days | Eschericcia coli infected male rats | (+) | [29] |
| Onion juice | 3 mL rat−1 (Orally) | 60 days | Permethrin-induced male rats | (+) | [30] |
| Onion juice | 40 mg kg−1 (Orally) | 14 days | Testicular torsion/detorsion rat models | (+) | [31] |
| Onion extracts containing concentrated cysteine sulfoxides | 30 mg day−1 (Orally) | 14 days | Healthy men | (+) | [17] |
(+) Increase, (−) Decrease, (±) no effect.