Are you sabotaging your sleep by taking the wrong vitamins and supplements at night? It’s a common mistake many of us make, thinking we’re doing our bodies a favor. But here’s where it gets controversial: some supplements, while great for health, can actually disrupt your sleep if taken too close to bedtime. Let’s dive into which ones to avoid—and the ones that might just help you drift off peacefully.
Vitamins and Supplements to Avoid Before Bedtime
1. Vitamin B12: While essential for energy and brain function, B12 can be a double-edged sword when it comes to sleep. Hannah Holzum, founder of Wholesome Nutrition Co., advises taking it in the morning. Interestingly, studies show that both low and high levels of B12 have been linked to insomnia. The key? Stick to the recommended 1.5 micrograms daily and time it right.
2. Calcium: This mineral is crucial for bone health, but taking it before bed can interfere with magnesium absorption—a mineral that actually promotes sleep. Instead, aim for the 700 milligrams daily recommendation, ideally through dietary sources like milk, which research suggests may improve sleep quality.
3. Multivitamins: Most multivitamins contain calcium and B vitamins, making them less than ideal for bedtime. Plus, they often include fat-soluble vitamins that absorb better with food. Holzum recommends pairing them with a meal instead of taking them on an empty stomach before bed. And remember, not everyone needs a multivitamin—it’s best to consult a professional if you’re unsure.
But here’s where it gets interesting: Supplements That Can Actually Improve Sleep
1. Magnesium: This mineral is a sleep superstar. A 2024 study found that magnesium threonate, taken two hours before bed, improved deep sleep, mood, and energy. Amy Anderson, founder of A+ Nutrition, suggests forms like glycinate or citrate for better tolerance. Her tip? A ‘sleepy mocktail’ with magnesium powder, water, and tart cherry juice.
2. Vitamin C: Higher levels of this vitamin are linked to better sleep, with studies recommending 132 to 191 mg daily to prevent sleep disorders. The minimum? Around 40 mg for adults.
3. Iron: If you’re iron-deficient, poor sleep might be your norm. Supplementing to reach normal levels could help restore healthier sleep patterns. Women need 14.8 mg daily pre-menopause, dropping to 8.7 mg post-menopause, while men require 11.3 mg.
4. Omega-3 Fatty Acids: A 2024 study found that higher intake of these fats led to greater sleep efficiency, possibly by regulating serotonin secretion. Aim for at least 250 mg daily, though some experts recommend up to 1 gram for optimal benefits.
And this is the part most people miss: While magnesium is great before bed, multivitamins are better taken in the morning to avoid disruption and enhance absorption. Still unsure about your supplements? Consult your GP or pharmacist.
Controversial Question: Should we rethink the timing of all supplements, or is bedtime dosing just fine for some? Share your thoughts below—let’s spark a discussion!
