Feeling “off” lately and not sure why? A surprising number of people are low in magnesium—and don’t even know it. Some estimates suggest up to 50% of adults in the U.S. may be deficient.[1]
Magnesium is involved in over 300 enzymatic reactions in the body, so a shortfall can show up in subtle but frustrating ways. Here are 7 signs to watch for:
1. Muscle Cramps or Twitching
Random cramps or eye twitches? Magnesium plays a direct role in muscle contraction and relaxation. A deficiency often causes tightness, spasms, or “charley horse” cramps—especially at night.
2. Anxiety or Irritability
Magnesium helps regulate neurotransmitters like GABA, which promote calm and reduce anxiety. Low levels can make you feel more stressed, moody, or overwhelmed.[1]
3. Poor Sleep or Restlessness
Struggling to fall or stay asleep? A magnesium deficiency may be the culprit. Magnesium helps activate melatonin and relax your nervous system to support deeper sleep.[2]
4. Low Energy or Fatigue
Magnesium is essential for ATP production (your cells’ energy currency). Without it, you may feel drained, even if you’re eating and sleeping well.
5. Headaches or Migraines
Research suggests that magnesium may help prevent or reduce migraine frequency and severity.[1]
6. Constipation
Magnesium helps move things along in your digestive tract. Low magnesium may contribute to infrequent or difficult bowel movements—especially if you’re also dehydrated.
7. Irregular Heartbeat
Magnesium plays a key role in heart rhythm and electrical conduction. In more severe cases, deficiency can trigger heart palpitations or arrhythmias.[3]
Think You Might Be Deficient?
It’s easy to test with a blood panel, but symptoms often show up before labs do. Many people start feeling better by simply adding a high-absorption supplement like magnesium glycinate.
Check out our Top Picks for trusted brands and dosing tips to help you start strong.
Disclaimer: This content is for educational purposes only. Please consult a licensed professional for personalized medical advice.