Magnesium Raspberry-Lemon by Garden of Life

If you’re looking for magnesium powder for sleep, muscle cramps, or constipation, this fits. It delivers 350 mg per teaspoon, a near full-day dose for most adults, useful when your Magnesium, RBC or Serum Magnesium is low-normal and you’re dragging, tense, or not sleeping well. Athletes with heavy sweat loss, people on diuretics or proton pump inhibitors, those with high alcohol intake, and diets light on greens and legumes are the usual low-magnesium culprits. The added 120 mg sodium helps hydration on long training days.

Magnesium calms excitable nerve circuits by tempering NMDA receptors (the brain’s “go” signal for glutamate) and supporting GABA signaling (the brain’s “calm” signal), which is why many notice easier sleep onset. In muscle, it competes with calcium at the cell level, letting tight muscle fibers relax. It also stabilizes ATP, the energy molecule every cell runs on, which is why low levels feel like fatigue. In the gut, certain forms act osmotically, pulling water into the stool and easing constipation. The light probiotic blend here adds Lactobacillus strains, but the dose is modest and not a substitute for a dedicated probiotic if you’re targeting IBS.

Mix one teaspoon in water daily. Evening works well if your goal is sleep; take with food if you’re prone to stomach upset. If you get loose stools, split to half in the late afternoon and half at bedtime, or use a lower dose for a week then ramp. Recheck Magnesium, RBC after 4 to 8 weeks to see if you’ve hit your target. The 120 mg sodium per serving is modest and fine for most, but if you’re on strict sodium restriction, account for it.

Magnesium binds many medicines in the gut. Separate by at least 4 hours from levothyroxine (thyroid hormone), tetracycline or fluoroquinolone antibiotics, and osteoporosis drugs like alendronate. It can lower absorption of iron; take iron at a different time. With chronic kidney disease, discuss dosing with your clinician, as magnesium can accumulate when filtration is low. If you already have diarrhea, start at a smaller dose.