Caffeine vs L Tyrosine
Short answer: Overall, Caffeine gets more positive reports (42% vs 0%).
Caffeine has 680 meta-analyses and 2,072 randomized trials on PubMed; the other has not been graded.
Based on 1,607 reports about Caffeine and 5 about L Tyrosine. Not medical advice.
| Caffeine Substance | L Tyrosine Supplement | |
|---|---|---|
| User score | 49 | 8 |
| Verdict | Mixed | Mostly negative |
| Positive of reports that state an outcome | 42% | 0% |
| Reports | 1,607 | 5 |
| Research | AResearch: Strong | Research pending |
| Meta-analyses / RCTs | 680 / 2,072 | — |
| Mainly used for | ||
| Weight loss % reporting improvement | 90% (10) | — |
| Appetite % reporting improvement | 67% (6) | — |
| Focus % reporting improvement | 79% (368) | — |
| Energy % reporting improvement | 78% (540) | — |
| Sleep % reporting improvement | 14% (112) | — |
| Anxiety % reporting improvement | 16% (210) | — |
| Mood % reporting improvement | 73% (110) | — |
| Memory % reporting improvement | 53% (19) | — |
| Performance % reporting improvement | 91% (35) | — |
| Pain & inflammation % reporting improvement | 40% (5) | — |
| Digestion % reporting improvement | 29% (7) | — |
| Libido % reporting improvement | 0% (2) | — |
| Hormones % reporting improvement | 25% (4) | — |
| Heart & lipids % reporting improvement | 8% (12) | — |
| Common side effects | jitteriness, anxiety, insomnia, headache | anxiety |
| Typical dose reported | 100-150 mg / daily | 500 mg / morning |
To avoid reductions in total sleep time, coffee (107 mg per 250 mL) should be consumed at least 8.8 h prior to bedtime and a standard serve of pre-workout supplement (217.5 mg) should be consumed at least 13.2 h prior to bedtime. The results of the present study provide evidence-based guidance for the appropriate consumption of caffeine to mitigate the deleterious effects on sleep.
Sleep Med Rev, 2023 ↗“Personally, I feel and function much better if I keep my caffeine intake very low to zero.”
“I just recently tried saffron and it gave me bad anxiety as did l tyrosine.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate