The short answer · Phosphate status
Take phosphorus for phosphate status. This is the one to buy.

NOW Foods, Sunflower Lecithin Pure Powder, 1 lb (454 g)
4.8· 39,314 ratings· $0.42/serving
Phosphorus 270 mg — inside the studied 250-1000 mg window
Of 1,837 products scored for Phosphate status, NOW Foods, Sunflower Lecithin Pure Powder, 1 lb (454 g) ranks #1 with a DoseRank score of 85. Phosphorus is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Phosphorus — not Calcium Carbonate or Calcium Phosphate?”Evidence Strong evidence
Phosphorus is the strongest evidence signal for this outcome.
- PhosphorusThe pick
Strong evidence · 270 mg
Essential mineral tracked on nutrition labels; critical for bone and tooth mineralization, ATP energy production, and cell membrane phospholipids.
- Calcium Carbonate
Strong evidence · 650 mg (calculated)
The cheapest, most concentrated calcium form at 40% elemental; needs stomach acid, so take with food and expect weak uptake on acid-reducing medications.
- Calcium Phosphate
Strong evidence · 750 mg
A calcium-phosphorus mineral salt with lower calcium bioavailability than citrate or malate; common in food fortification and some bone supplements.
The dose“Is the dose actually effective?”Dose fit 67
Phosphorus at 270 mg lands inside the studied 250-1000 mg window.
Phosphorus
Studied window 250-1000 mg · this pick 270 mg
The ranking“Why should I trust this pick?”Trust 95
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 1,837 products scored
- Never paid placement
- Evidence level: Strong · 92
- 218 brands
- 3 ingredients
The price“Can I do better than $0.42 a serving?”Value 83
$0.42 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.09 per serving.
- 4NOW Foods, Bone Meal Powder, 1 lb (454 g)Score 84 · $0.09/servingiHerb
- 9Nature's Way, Alive!®, Calcium & Vitamin D3 Gummy, Raspberry-Lemonade & Strawberry, 60 GummiesScore 81 · $0.36/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.42 a serving.NOW Foods, Sunflower Lecithin Pure Powder, 1 lb (454 g) — in stock at a tracked retailer.
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NOW Foods, Sunflower Lecithin Pure Powder, 1 lb (454 g) ranks #1 for Phosphate status with a DoseRank score of 85. The score blends clinical strength, evidence, dose fit, trust signals and value across 1,837 products scored for this outcome.