From the Research
I strongly advise against deliberately attempting to induce muscle twitching with caffeine and salt, as this combination can be dangerous and potentially life-threatening. Taking 700mg of caffeine far exceeds the recommended safe daily limit of 400mg for adults and can cause serious side effects including irregular heartbeat, seizures, and in extreme cases, death, as noted in various studies on caffeine's effects on the human body 1, 2, 3. Combining this with a high salt dose can further disrupt your electrolyte balance and potentially lead to cardiac arrhythmias, highlighting the importance of balanced sodium intake for health and performance, especially in endurance sports 4. Muscle twitching is actually a warning sign of caffeine toxicity and electrolyte imbalance, not a desirable effect to pursue. If you're experiencing involuntary muscle movements, please consult a healthcare provider instead of attempting to self-induce them. There is no safe timing or method to use these substances for inducing muscle twitches, as doing so reflects a dangerous misuse of these compounds that could result in serious medical emergencies. Recent studies have shown that caffeine can have positive effects on muscle contraction time and maximal displacement in professional athletes, but these effects are observed at much lower doses (9 mg/kg body mass) and in a controlled, athletic context 5. Given the potential risks and the lack of medical benefit, it is not recommended to attempt to induce muscle twitching with caffeine and salt under any circumstances.