Category: Supplement Guides

Glycine is a simple amino acid that has been studied as part of evening routines. In a 2007 study, people who took 3 grams of glycine before bed reported better subjective sleep quality and less daytime sleepiness than with placebo. The research is small, so glycine is best seen as one option to discuss alongside good sleep habits.

Research on zinc lozenges is more encouraging than for many cold products. A 2017 meta-analysis of seven placebo-controlled trials found that colds were about a third shorter on average in people who used zinc lozenges providing more than 75 mg of zinc a day. Starting them early and using them only for a short time is what the studies looked at.

Magnesium is one of the most popular supplements in evening routines, and some research supports looking at it. In a small 2012 trial in older adults with insomnia, those who took magnesium reported longer sleep time and less trouble falling asleep compared with placebo. The research is still limited, so it is best seen as one part of a broader sleep routine.

Many people can meet most of their needs from a varied diet, and the NIH says multivitamins cannot replace healthy eating. A multivitamin can help fill gaps for people who eat a limited diet, follow a vegan pattern, have a poor appetite, or are planning a pregnancy. Whether one fits you depends on your diet, life stage, and health history.

Often they are not. A 2023 study in JAMA tested melatonin gummies sold in the US and found that the amount of melatonin in most products did not match the label, with some containing far more than listed. If you use melatonin, choosing a brand with independent testing and talking with a provider about your sleep routine is a sensible approach.

The best place to start is your own goals, diet, and health history rather than a trending list. Supplements are not one-size-fits-all, and label quality also varies, since a 2022 study found that more than half of the immune supplements it tested had labels that did not match what was inside. A short, structured look at your needs, plus products from brands with strong quality testing, keeps it simple.

It may matter more than many people think. A 2024 study of about 60,000 adults who wore activity trackers found that how regular their sleep timing was predicted long-term risk of death more strongly than how many hours they slept. Keeping a steady bedtime and wake time, even on weekends, is a simple habit worth building.

You may not need a full 10,000 steps for walking to matter. A large 2022 analysis of 15 studies found that the link between more daily steps and lower risk of death leveled off at around 8,000 to 10,000 steps a day for adults under 60. Every step up from a low baseline was part of that picture, so starting where you are counts.

The well-known "21 days" figure is not what the research shows. In a real-world study of daily habits, it took people a median of 66 days for a new behavior to feel automatic, with a wide range from about 18 days to well over 200. Missing a single day did not undo the process, which is good news for anyone starting over.

Many store receipts are printed on thermal paper that has used BPA or similar chemicals as the developer. A 2014 study found that holding thermal receipts right after using hand sanitizer and then eating finger food led to a quick rise in BPA levels in the blood and urine. Saying no to paper receipts, or keeping them away from freshly sanitized hands and food, is an easy change.