Start with the ingredients, serving and exact pack. Explore a product group, compare the declared details, then open a profile before checking a seller’s price.
Vitamins & Multivitamins
Compare two vitamin D3 softgels by declared amount, oil carrier and capsule ingredients. These examples cover the vitamin D subgroup; they do not stand for every vitamin or multivitamin.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Omega-3 Oils
Separate the amount of oil from the declared EPA and DHA. A fish-oil blend and a DHA-focused algae product have different ingredient profiles.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Protein Powders & Shakes
Compare two unflavored plant-protein blends by protein per labeled serving, ingredient sources and the ingredients the seller actually lists.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Creatine & Sports Supplements
Compare creatine monohydrate powders by actual declared creatine, serving weight and flavoring ingredients. Scoop weight and creatine weight are kept separate.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Fiber Products
Compare psyllium powders using dietary fiber, serving size and declared plant ingredient. Spoon measures and gram weights are shown exactly as the seller reports them.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Probiotics
Compare the named strains, declared CFU, serving size and storage instructions. More CFU or more strains alone does not establish a better product.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Greens, Spirulina & Barley Grass
Compare two different green-food ingredients: spirulina microalgae and young barley grass. They are different ingredients, not interchangeable versions of one product.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Botanicals & Plant Extracts
Compare the plant part, extract amount and stated standardization. Milligrams of two differently specified extracts do not establish equal strength.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Other Ingredients & Combinations
Compare collagen powders by collagen amount, declared source and additional nutrients. Collagen grams and protein grams are separate declarations.
2 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →Minerals
Compare the magnesium form, serving and other ingredients published by each selected provider. Missing seller values stay missing; conflicting fields are not silently reconciled.
4 Products · Provider Descriptions · No Price Ranking
Open The Ingredient Comparison →How To Read These Comparisons
Each subgroup is a starting point, not complete coverage of every product in its wider category. Vitamin D3 represents vitamins, magnesium represents minerals and collagen represents other ingredients. Food and meal services stay in the separate nutrition section. “Not disclosed” is a gap in the cited listing, not proof that a substance is absent.
We keep each provider’s serving and ingredient information together. Conflicting source fields remain visible.
Return To Nutrition & Supplements · How We Compare
Sources & How We Checked: By the Fit ’n’ Healthy editorial team. We checked the cited provider listings on November 4, 2026; the Nested Naturals reference was checked November 3, 2026. This is document-based ingredient research, not a hands-on test, laboratory analysis, clinical evaluation or personalized recommendation. No independent medical reviewer reviewed these comparisons. Missing values remain undisclosed; confirm the actual supplied label before purchase. 1 Herbspro — NOW Foods Vitamin D-3 https://www.herbspro.com/products/vitamin-d3-71661 | 2 Herbspro — Source Naturals Vitamin D-3 https://www.herbspro.com/products/vitamin-d3-78863 | 3 Herbspro — NOW Foods Omega-3 Fish Oil https://www.herbspro.com/products/now-foods-omega-3-fish-oil-1000-mg-100-softgels | 4 Herbspro — Deva Vegan Vitamins Vegan Omega-3 DHA https://www.herbspro.com/collections/vegan/products/vegan-omega3-dha-74537 | 5 Herbspro — Truvani Organic Plant Based Protein, Unflavored https://www.herbspro.com/products/organic-plant-based-protein-powder-unflavored-263701 | 6 Herbspro — Garden Of Life Raw Organic Protein, Unflavored https://www.herbspro.com/products/raw-protein-622g-powder | 7 Herbspro — Source Naturals Creatine Athletic Series https://www.herbspro.com/products/creatine-4-oz | 8 Herbspro — Nutricost Creatine Monohydrate, Fruit Punch https://www.herbspro.com/products/creatine-monohydrate-powder-fruit-punch-313053 | 9 Herbspro — NOW Foods Organic Psyllium Husk Powder https://www.herbspro.com/collections/psyllium-husk-1/products/psyllium-husk-powder-12-oz?variant=32875087298660 | 10 Herbspro — Frontier Co-op Organic Psyllium Husk Powder https://www.herbspro.com/products/organic-psyllium-husk-powdered-199622 | 11 Herbspro — NOW Foods Probiotic-10, 25 Billion https://www.herbspro.com/products/now-foods-probiotic-10-25-billion-50-vcaps?variant=32875085365348 | 12 Herbspro — Doctor’s Best Digestive Probiotic With HOWARU https://www.herbspro.com/collections/gut-health-supplements/products/best-probiotic-117215 | 13 Herbspro — NOW Foods Organic Spirulina Double Strength https://www.herbspro.com/products/organic-spirulina-263225 | 14 Herbspro — Pines Barley Grass https://www.herbspro.com/products/barley-grass-18450 | 15 Herbspro — Best Naturals Ashwagandha Root Extract https://www.herbspro.com/products/ashwagandha-6 | 16 Herbspro — Nature Made Sensoril Ashwagandha https://www.herbspro.com/products/ashwagandha-182619 | 17 Herbspro — Truvani Collagen Peptides, Unflavored https://www.herbspro.com/products/collagen-peptides-unflavored-263656 | 18 Herbspro — Bulletproof Collagen Protein, Unflavored https://www.herbspro.com/products/unflavored-collagen-protein-202315 | 19 Herbspro — Nutricost Magnesium Glycinate https://www.herbspro.com/products/magnesium-glycinate-capsules-313769 | 20 Herbspro — NOW Foods Magnesium Glycinate Tablets https://www.herbspro.com/products/magnesium-glycinate-5?variant=32872447246436 | 21 Herbspro — NOW Foods Magnesium Citrate Veg Capsules https://www.herbspro.com/products/magnesium-citrate-120-vcaps?variant=32874765779044 | 22 Nested Naturals — Nested Naturals Magnesium Glycinate Chelate https://nestednaturals.com/collections/magnesium/products/magnesium-glycinate-chelated-200mg