Frequently asked questions

Less than you'd think. Supplements work through consistent use over time — one or two missed days won't meaningfully set you back, and there's no need to double up the next day to "catch up." Just pick back up.

Often, yes — it's genuinely difficult to close every nutrient gap through food alone, even with a good diet. A multivitamin is best thought of as a baseline, not a replacement for eating well.

For some, yes. Energizing ones (like B-vitamins) tend to work better earlier in the day; others (like magnesium) can help with winding down at night. Fat-soluble vitamins (A, D, E, K) absorb better with a meal that has some fat in it.

Some can — calcium and iron, for example, compete for absorption if taken together. Spacing them a few hours apart helps your body use both properly. Re's Insights tab flags known interactions automatically.

Varies a lot by supplement — some (like caffeine-adjacent energy support) are near-immediate, others (like omega-3s or vitamin D) can take 4–8 weeks of consistent use before effects are noticeable. This is exactly why consistency matters more than any single day.

Because that's not how habits actually work, and punishing a bad week is how people quit for good. Re keeps the count, but it's information — never a reason to feel like you're starting over.