PlainVitamins

Solotron 50 Plus

by GNC Multivitamin · other (e.g. tea bag) · 90 caplets

  • Off the market since December 2023 (NIH)
  • DSLD label 677
  • Serving 2 caplets
  • 45 servings

Solotron 50 Plus by GNC Multivitamin lists 34 ingredients, 34 with an amount per serving of 2 caplets, such as 15,000 IU of vitamin A, 250 mg of vitamin C, 400 IU (10 mcg) of vitamin D and 100 IU of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on October 26, 2011.

What is in Solotron 50 Plus?

Each row as the label prints it, per serving of 2 caplets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Solotron 50 Plus: Supplement Facts rows against the market (DSLD label 677, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas AcetateVitamin A (Form: as 33% Acetate)15,000 IU300%Vitamin A in Solotron 50 Plus against 5,772 products15,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.15,000 IU

Higher than 93% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin Cas Ascorbic Acid250 mg417%Vitamin C in Solotron 50 Plus against 18,583 products250 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg250 mg

Higher than 68% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Das Cholecalciferol, Vitamin D3Vitamin D (Form: as Cholecalciferol (Alt. Name: Vitamin D-3))400 IU (10 mcg)100%Vitamin D in Solotron 50 Plus against 14,175 products10 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg10 mcg

57% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin Eas D-Alpha-Tocopheryl SuccinateVitamin E (Form: as natural D-Alpha Tocopheryl Succinate Note: 80 mg)100 IU333%Vitamin E in Solotron 50 Plus against 6,459 products100 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.100 IU

Higher than 71% of 6,459 products listing vitamin E (median 30 IU).

Thiamineas Thiamine Mononitrate, Vitamin B1Thiamin (Form: as Thiamin Mononitrate) (Alt. Name: Vitamin B-1)35 mg2,333%Thiamin in Solotron 50 Plus against 9,830 products35 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg35 mg

Higher than 81% of 9,830 products listing thiamin (median 5 mg).

Riboflavin35 mg2,059%Riboflavin in Solotron 50 Plus against 9,824 products35 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg35 mg

Higher than 84% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacin, NiacinamideNiacin (Form: as Niacin, and Niacinamide)35 mg175%Niacin in Solotron 50 Plus against 12,413 products35 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg35 mg

Higher than 69% of 12,413 products listing niacin (median 20 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine Hydrochloride)35 mg1,750%Vitamin B6 in Solotron 50 Plus against 15,277 products35 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg35 mg

Higher than 85% of 15,277 products listing vitamin B6 (median 6 mg).

Folic Acid400 mcg100%Folate in Solotron 50 Plus against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B12as CyanocobalaminVitamin B-12 (Form: as Cyanocobalamin)30 mcg500%Vitamin B12 in Solotron 50 Plus against 14,425 products30 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg30 mcg

51% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin30 mcg10%Biotin in Solotron 50 Plus against 9,447 products30 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg30 mcg

83% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium D-PantothenatePantothenic Acid (Form: as Calcium D-Pantothenate)20 mg200%Pantothenic Acid (Vitamin B5) in Solotron 50 Plus against 10,060 products20 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg20 mg

Higher than 55% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate)200 mg20%Calcium in Solotron 50 Plus against 17,831 products200 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg200 mg

Higher than 64% of 17,831 products listing calcium (median 115 mg).

Ironas FerronylIron (Form: as Ferronyl)10 mg56%Iron in Solotron 50 Plus against 6,910 products10 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg10 mg

Higher than 67% of 6,910 products listing iron (median 5 mg).

Phosphorusas Dicalcium PhosphatePhosphorus (Form: as Dicalcium Phosphate)35 mg4%Phosphorus in Solotron 50 Plus against 3,786 products35 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg35 mg

82% of 3,786 products listing phosphorus give more (median 90 mg).

Iodineas Potassium IodideIodine (Form: as Potassium Iodide)30 mcg20%Iodine in Solotron 50 Plus against 6,382 products30 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg30 mcg

92% of 6,382 products listing iodine give more (median 150 mcg).

Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide)100 mg25%Magnesium in Solotron 50 Plus against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg).

Zincas Zinc OxideZinc (Form: as Zinc Oxide)15 mg100%Zinc in Solotron 50 Plus against 13,186 products15 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg15 mg

Higher than 56% of 13,186 products listing zinc (median 11 mg).

Seleniumas Selenium YeastSelenium (Form: as Selenium Yeast)25 mcg36%Selenium in Solotron 50 Plus against 7,658 products25 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg25 mcg

75% of 7,658 products listing selenium give more (median 55 mcg).

Copperas Cupric SulfateCopper (Form: as Cupric Sulfate)2 mg100%Copper in Solotron 50 Plus against 6,468 products2 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg2 mg

Higher than 66% of 6,468 products listing copper (median 1 mg).

Manganeseas Manganese SulfateManganese (Form: as Manganese Sulfate)3 mg150%Manganese in Solotron 50 Plus against 7,016 products3 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg3 mg

Higher than 71% of 7,016 products listing manganese (median 2 mg).

Chromiumas GTF Chromium YeastChromium (Form: as GTF Chromium Yeast)100 mcg83%Chromium in Solotron 50 Plus against 7,825 products100 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg100 mcg

47% of 7,825 products listing chromium give more (median 100 mcg).

Molybdenumas Sodium MolybdateMolybdenum (Form: as Sodium Molybdate)25 mcg33%Molybdenum in Solotron 50 Plus against 4,390 products25 mcg per serving; the middle half of products list 25 mcg to 75 mcg, the median 50 mcg.DV 45 mcgUL 2,000 mcg25 mcg

72% of 4,390 products listing molybdenum give more (median 50 mcg).

Chlorideas Potassium ChlorideChloride (Form: as Potassium Chloride)72 mg2%Chloride in Solotron 50 Plus against 1,476 products72 mg per serving; the middle half of products list 60 mg to 183.5 mg, the median 75 mg.DV 2,300 mgUL 3,600 mg72 mg

51% of 1,476 products listing chloride give more (median 75 mg).

Potassiumas Potassium ChloridePotassium (Form: as Potassium Chloride)80 mg2%Potassium in Solotron 50 Plus against 11,614 products80 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg80 mg

59% of 11,614 products listing potassium give more (median 99 mg).

Silicaas Silica ChelateSilica (Form: as hydrolyzed protein Silica Chelate)10 mcgSilicon in Solotron 50 Plus against 1,220 products0.01 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.0.01 mg

98% of 1,220 products listing silicon give more (median 4 mg).

Nickelas Nickel SulfateNickel (Form: as Nickel Sulfate)5 mcgNickel in Solotron 50 Plus against 317 products5 mcg per serving; the middle half of products list 5 mcg to 5 mcg, the median 5 mcg.UL 1,000 mcg5 mcg

9% of 317 products listing nickel give more (median 5 mcg).

Inositol50 mcgInositol in Solotron 50 Plus against 4,042 products0.05 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.0.05 mg

92% of 4,042 products listing inositol give more (median 30 mg).

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)50 mcg0%*Choline in Solotron 50 Plus against 4,738 products0.05 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg0.05 mg

96% of 4,738 products listing choline give more (median 40 mg).

Para-Aminobenzoic Acid50 mcgPABA in Solotron 50 Plus against 1,610 products0.05 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.0.05 mg

99% of 1,610 products listing PABA give more (median 25 mg).

Citrus Bioflavonoid Complex50 mgFlavonoid in Solotron 50 Plus against 2,343 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

46% of 2,343 products listing flavonoid give more (median 50 mg).

Coenzyme Q-10 PowderCoenzyme Q-10 Powder Note: Natural75 mcgCoenzyme Q-10 in Solotron 50 Plus against 2,922 products0.075 mg per serving; the middle half of products list 30 mg to 100 mg, the median 60 mg.0.075 mg

over 99% of 2,922 products listing coenzyme Q-10 give more (median 60 mg).

Soy Lecithin powder50 mgLecithin in Solotron 50 Plus against 804 products50 mg per serving; the middle half of products list 50 mg to 1,200 mg, the median 200 mg.50 mg

73% of 804 products listing lecithin give more (median 200 mg).

Luteinas Lutein EstersLutein (Form: as Lutein Esters)300 mcgLutein in Solotron 50 Plus against 2,493 products0.3 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.0.3 mg

80% of 2,493 products listing lutein give more (median 3 mg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 677 (entered October 26, 2011), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 15,000 IU of vitamin A is higher than 93% of the 5,772 vitamin A products that print an amount; 326 list more.
  • 83% of the 9,447 products that print an amount of biotin list more than its 30 mcg of biotin (median 200 mcg).
  • 92% of the 6,382 products that print an amount of iodine list more than its 30 mcg of iodine (median 150 mcg).
  • 98% of the 1,220 products that print an amount of silicon list more than its 0.01 mg of silica (filed by NIH under silicon) (median 4 mg).
  • 9% of the 317 products that print an amount of nickel list more than its 5 mcg of nickel (median 5 mcg).
  • 92% of the 4,042 products that print an amount of inositol list more than its 0.05 mg of inositol (median 30 mg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Solotron 50 Plus's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: As a dietary supplement, take two caplets daily with food.
Warnings
KEEP OUT OF REACH OF CHILDREN.
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of the reach of children. In case of accidental overdose, call a doctor or a poison control center immediately.
Allergens and what it does not contain
No Sugar, No Artificial Colors, No Preservatives, No Wheat, No Gluten, No Dairy.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 677.

What else is on the label?

Other ingredients: Cellulose, Titanium Dioxide, Vegetable Acetoglycerides, Caramel color, Ethyl Vanillin.

How many labels does Solotron 50 Plus have?

One label is on file, entered on October 26, 2011.

  1. Label 677 (current) Entered October 26, 2011 · off the market December 19, 2023 · 90 caplets

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names General Nutrition Corporation (distributor), Pittsburgh, PA. All GNC Multivitamin products.

Where next?