Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Reduce pregnancy complications

What this outcome means

Pregnancy complications are the health problems that can arise for a mother or baby during pregnancy, from blood pressure issues to growth concerns. On DoseRank it maps to a defined health outcome built from human studies on rates of pre-eclampsia, gestational diabetes, preterm birth, and birth-weight outcomes – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Higher-risk pregnancyExpectant mothers flagged for closer monitoring by their care team.

Planning aheadPeople preparing for conception and a healthier pregnancy course.

Prior complicationsMothers who faced problems in an earlier pregnancy.

Stack buildersAlready taking supplements such as Calcium and want the dose right.

Evidence level

92Strong

Calcium – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 97 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Calcium is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 97

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Calcium 10 g vs 1-2 g.

Processed

3.3k

Available

3.3k

Ingredients

Brands

380

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Reduce pregnancy complications

What this outcome means

Who it's for

Higher-risk pregnancyExpectant mothers flagged for closer monitoring by their care team.

Planning aheadPeople preparing for conception and a healthier pregnancy course.

Prior complicationsMothers who faced problems in an earlier pregnancy.

Stack buildersAlready taking supplements such as Calcium and want the dose right.

Evidence level

92Strong

Best ingredients

Calcium is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 97

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Calcium 10 g vs 1-2 g.

Processed

3.3k

Available

3.3k

Ingredients

Brands

380

Coverage

100%

Relevant ingredients

Which ingredient types matter for pregnancy complicationsOpen to see which ingredient types matter for pregnancy complications

2.1k products across 2 ingredient types — open to filter the ranking.

Use types to filter ranked products

Botanicals/Herbal Extracts

26 products

Concentrated plant and herbal extracts standardized to actives. Potency depends on the extract ratio and marker content, not raw weight.

Typical:

Minerals & Trace Elements

2k products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical: ,

Top decision cards

Best products for pregnancy complications

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for pregnancy complications

Jovial, Organic Brown Rice Pasta, Capellini, 12 oz (340 g)

Jovial$0.81 / serving4.7 · 1,656Available now

Also helps with

Bone mineral density

Why this ranks here

Evidence fitCalcium is the strongest evidence signal for this outcome.
Dose fitCalcium at 10 g is higher than the studied 1-2 g window.
Price / serving$0.81 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustSolid trust signals from buyer ratings, with room to grow.

The numbers

10 gAbove rangehigher than the studied 1-2 g window

160 mg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Citracal, Calcium Supplement + D3, Slow Release 1200 , 80 Coated Tablets

CitracalClinical87Dose fit71Popularity89$0.42/ serving

California Gold Nutrition, Algae-Based Calcium with Vitamin D3, and Magnesium, Organic Strawberry, Raspberry, and Blueberry, 180 Tablets

California Gold NutritionClinical87Dose fit67Popularity89$0.35/ serving

California Gold Nutrition, Algae-Based Calcium with Calcium, Vitamin D3, and Magnesium, Organic Strawberry, Raspberry, and Blueberry, 180 Tablets

California Gold NutritionClinical87Dose fit67Popularity91$0.42/ serving

NOW Foods, Shark Cartilage, 750 mg, 300 Capsules

NOW FoodsClinical87Dose fit67Popularity80$0.58/ serving

California Gold Nutrition, Organic Calcium & Magnesium Plus D3 & K2, 180 Tablets

California Gold NutritionClinical87Dose fit67Popularity84$0.44/ serving

Nutricost, Casein Protein, Chocolate, 2 lb (907 g)

NutricostClinical89Dose fit100Popularity50$1.28/ serving

PlantFusion, Vegan Planet-Based Calcium, 90 Tablets (333 mg per Tablet)

PlantFusionClinical87Dose fit67Popularity68$0.83/ serving

NOW Foods, Shark Cartilage, 100 Capsules

NOW FoodsClinical87Dose fit67Popularity50$0.80/ serving

Garden of Life, Vitamin Code®, RAW Calcium™, 60 Vegetarian Capsules

Garden of LifeClinical87Dose fit69Popularity50$1.34/ serving