Source Naturals, Magtein Magnesium L-Threonate 667mg - 180 Capsules
Cost per serving👍 Good value
$0.33/ serving
180 servings · ~$10.03/mo · 180-day supply
You pay
Price checked 2 hours ago$60.19
direct from Amazon.com
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👍 Good value — below the typical Magnesium L-Threonate cost-per-dose.
⚠️ Above the upper intake level — this product's labelled serving is 667mg of Magnesium L-Threonate, about 1.9x the NIH tolerable upper intake level for adults (350 mg per day). Strengths like this are normally taken less than daily or under medical supervision. Check the label directions and talk to a clinician — this is general information, not medical advice.
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Lead with cost-per-dose, not vibes.