The short answer · Muscle weakness
Take vitamin d for muscle weakness. This is the one to buy.

Bob's Red Mill, Baking Soda, 1 lb (454 g)
4.8· 21,877 ratings· $0.01/serving
Vitamin D 0 mcg — below the studied 1000-5000 IU window
Of 2,604 products scored for Muscle weakness, Bob's Red Mill, Baking Soda, 1 lb (454 g) ranks #1 with a DoseRank score of 63. Vitamin D has moderate human evidence for this outcome.
The form“Why Vitamin D?”Evidence Moderate evidence
Vitamin D has moderate human evidence for this outcome.
- Vitamin DThe pick
Moderate evidence · 0 mcg
Fat-soluble vitamin made in skin from sunlight; needed for calcium absorption, bone health, and immune modulation, and widely deficient in low-sun regions.
The dose“Is the dose actually effective?”Dose fit 40
Vitamin D at 0 mcg sits below the studied 1000-5000 IU window.
Vitamin D
Studied window 1000-5000 IU · this pick 0 mcg
Questions
Frequently asked
Bob's Red Mill, Baking Soda, 1 lb (454 g) ranks #1 for Muscle weakness with a DoseRank score of 63. The score blends clinical strength, evidence, dose fit, trust signals and value across 2,604 products scored for this outcome.
Vitamin D has moderate human evidence for this outcome.
Vitamin D at 0 mcg sits below the studied 1000-5000 IU window. DoseRank scores this product's dose fit at 40 out of 100.
Bob's Red Mill, Baking Soda, 1 lb (454 g) works out at $0.01 per serving. $0.01 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.
No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.
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