PlainVitamins

Clark All-in-One

by Dr. Clark Research Association Dr. Clark Zentrum · powder · 600 grams

  • On the market (NIH)
  • DSLD label 255085
  • Serving 20 g (1/4 Cup)
  • 30 servings

Clark All-in-One by Dr. Clark Research Association Dr. Clark Zentrum lists 58 ingredients, 58 with an amount per serving of 20 g, such as 566 mg of vitamin C, 15 mcg (600 IU) of vitamin D3, 411 mg of calcium and 3 mg of iron, beside 9 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on September 24, 2021.

What is in Clark All-in-One?

Each row as the label prints it, per serving of 20 g. 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).

Clark All-in-One: Supplement Facts rows against the market (DSLD label 255085, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories70 Calories
Total Fat1.5 g2%Fat (unspecified) in Clark All-in-One against 11,965 products1.5 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.1.5 g

44% of 11,965 products listing fat (unspecified) give more (median 1.5 g).

Saturated Fat0 g0%
Trans Fat0 g
Cholesterol0 g0%
Sodium75 mg3%Sodium in Clark All-in-One against 14,514 products75 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.75 mg

Higher than 57% of 14,514 products listing sodium (median 55 mg).

Total Carbohydrates9 g3%Carbohydrate in Clark All-in-One against 21,979 products9 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.9 g

Higher than 85% of 21,979 products listing carbohydrate (median 3 g).

Dietary Fiber6 g24%Fiber in Clark All-in-One against 6,987 products6 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.6 g

Higher than 89% of 6,987 products listing fiber (median 2 g).

Total Sugarsless than 1 g
Protein5 g10%Protein in Clark All-in-One against 8,985 products5 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.5 g

64% of 8,985 products listing protein give more (median 16 g).

Vitamin Cas Ascorbic Acid566 mg943%Vitamin C in Clark All-in-One against 18,583 products566 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg566 mg

Higher than 89% of 18,583 products listing vitamin C (median 100 mg).

Vitamin D3as Cholecalciferol, Ergocalciferol15 mcg (600 IU)100%Vitamin D in Clark All-in-One against 14,175 products65 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg65 mcg

Higher than 90% of 14,175 products listing vitamin D (median 15 mcg).

Calcium411 mg41%Calcium in Clark All-in-One against 17,831 products667.88 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg667.88 mg

Higher than 94% of 17,831 products listing calcium (median 115 mg).

Iron3 mg17%Iron in Clark All-in-One against 6,910 products3 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg3 mg

60% of 6,910 products listing iron give more (median 5 mg).

Potassium410 mg12%Potassium in Clark All-in-One against 11,614 products810 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg810 mg

Higher than 98% of 11,614 products listing potassium (median 99 mg).

Acai extract50 mgAcai in Clark All-in-One against 433 products50 mg per serving; the middle half of products list 62.5 mg to 600 mg, the median 300 mg.50 mg

76% of 433 products listing acai give more (median 300 mg).

Acerola extract50 mgAcerola in Clark All-in-One against 436 products50 mg per serving; the middle half of products list 14.5 mg to 300 mg, the median 60 mg.50 mg

54% of 436 products listing acerola give more (median 60 mg).

Aronia Extract50 mgChokeberry in Clark All-in-One against 59 products50 mg per serving; the middle half of products list 100 mg to 500 mg, the median 250 mg.50 mg

83% of 59 products listing chokeberry give more (median 250 mg).

Astaxanthin Complex6,000 mcgAstaxanthin in Clark All-in-One against 955 products6 mg per serving; the middle half of products list 0.1 mg to 4 mg, the median 1 mg.6 mg

Higher than 79% of 955 products listing astaxanthin (median 1 mg).

Beet100 mgBeet in Clark All-in-One against 850 products100 mg per serving; the middle half of products list 10.63 mg to 500 mg, the median 100 mg.100 mg

48% of 850 products listing beet give more (median 100 mg).

Biotinas Vitamin B7340 mcg1,133%*Biotin in Clark All-in-One against 9,447 products340 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg340 mcg

Higher than 76% of 9,447 products listing biotin (median 200 mcg).

Broccoli500 mgBroccoli in Clark All-in-One against 530 products500 mg per serving; the middle half of products list 40 mg to 250 mg, the median 100 mg.500 mg

Higher than 86% of 530 products listing broccoli (median 100 mg).

Calciumas Calcium CitrateCalcium (Form: as Calcium Citrate)256.88 mg
Pantothenic Acidas Calcium Pantothenate, Vitamin B5Pantothenic Acid (Form: as Calcium Pantothenate) (Alt. Name: B5)50 mg1,000%*Pantothenic Acid (Vitamin B5) in Clark All-in-One against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calcium Ascorbate800 mg
Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)10 mg2%*Choline in Clark All-in-One against 4,738 products10 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg10 mg

80% of 4,738 products listing choline give more (median 40 mg).

Chromiumas Chromium Amino Acid Chelate80 mcg229%*Chromium in Clark All-in-One against 7,825 products80 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg80 mcg

58% of 7,825 products listing chromium give more (median 100 mcg).

Citrus Bioflavonoids70 mgFlavonoid in Clark All-in-One against 2,343 products70 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.70 mg

Higher than 59% of 2,343 products listing flavonoid (median 50 mg).

Coconut Oil2,000 mgCoconut oil in Clark All-in-One against 160 products2 g per serving; the middle half of products list 0.5 g to 2 g, the median 1 g.2 g

Higher than 54% of 160 products listing coconut oil (median 1 g).

Copperas Copper Amino Acid Chelate1 mg111%*Copper in Clark All-in-One against 6,468 products1 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg1 mg

40% of 6,468 products listing copper give more (median 1 mg).

Cranberry50 mgCranberry in Clark All-in-One against 1,064 products50 mg per serving; the middle half of products list 97.5 mg to 500 mg, the median 250 mg.50 mg

80% of 1,064 products listing cranberry give more (median 250 mg).

Folic Acidas L-Methylfolate800 mcgFolate in Clark All-in-One against 7,022 products800 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.800 mcg

Higher than 81% of 7,022 products listing folate (median 400 mcg).

Ginkgo Extract50 mgGinkgo in Clark All-in-One against 1,339 products50 mg per serving; the middle half of products list 30 mg to 120 mg, the median 60 mg.50 mg

61% of 1,339 products listing ginkgo give more (median 60 mg).

Green Tea extractas EGCG50 mgGreen Tea in Clark All-in-One against 2,595 products50 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.50 mg

69% of 2,595 products listing green tea give more (median 100 mg).

Guar Gum750 mgGuar in Clark All-in-One against 128 products750 mg per serving; the middle half of products list 300 mg to 1,625 mg, the median 651.5 mg.750 mg

Higher than 52% of 128 products listing guar (median 651.5 mg).

Hesperidine15 mgHesperidin in Clark All-in-One against 552 products15 mg per serving; the middle half of products list 10 mg to 50 mg, the median 20 mg.15 mg

54% of 552 products listing hesperidin give more (median 20 mg).

Kale500 mgKale in Clark All-in-One against 133 products500 mg per serving; the middle half of products list 25 mg to 400 mg, the median 125 mg.500 mg

Higher than 78% of 133 products listing kale (median 125 mg).

L-Lysine200 mgLysine in Clark All-in-One against 1,250 products200 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.200 mg

69% of 1,250 products listing lysine give more (median 500 mg).

Lutein20 mgLutein in Clark All-in-One against 2,493 products20 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.20 mg

Higher than 86% of 2,493 products listing lutein (median 3 mg).

Magnesiumas Magnesium Citrate, Magnesium Oxide418 mg100%*Magnesium in Clark All-in-One against 14,003 products418 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg418 mg

Higher than 95% of 14,003 products listing magnesium (median 86 mg). 1.2 times the adult UL a day.
Show the other 29 rows of the label
Clark All-in-One: rows 41 to 69
IngredientAmount% DVAmong products listing it
Manganeseas Manganese Amino Acid Chelate2 mg87%*Manganese in Clark All-in-One against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Monk Fruit300 mgLuo Han Guo in Clark All-in-One against 49 products300 mg per serving; the middle half of products list 24 mg to 970 mg, the median 35 mg.300 mg

Higher than 71% of 49 products listing luo han guo (median 35 mg).

MSM500 mgMethylsulfonylmethane in Clark All-in-One against 1,454 products500 mg per serving; the middle half of products list 150 mg to 1,000 mg, the median 500 mg.500 mg

36% of 1,454 products listing methylsulfonylmethane give more (median 500 mg).

Niacinas Inositol Hexanicotinate, Vitamin B377 mg481%*Niacin in Clark All-in-One against 12,413 products77 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg77 mg

Higher than 87% of 12,413 products listing niacin (median 20 mg). 2.2 times the adult UL a day.

Opcas Grape Seed Extract30 mgProanthocyanidins in Clark All-in-One against 164 products30 mg per serving; the middle half of products list 12.5 mg to 95 mg, the median 36 mg.30 mg

55% of 164 products listing proanthocyanidins give more (median 36 mg).

Potassiumas Potassium Citrate400 mg
Probiotic powder250 mg
Quercetin50 mgQuercetin in Clark All-in-One against 1,548 products50 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.50 mg

56% of 1,548 products listing quercetin give more (median 100 mg).

Resveratrol10 mgResveratrol in Clark All-in-One against 1,123 products10 mg per serving; the middle half of products list 20 mg to 125 mg, the median 50 mg.10 mg

80% of 1,123 products listing resveratrol give more (median 50 mg).

Rice Protein powder5 gRice Protein in Clark All-in-One against 62 products5 g per serving; the middle half of products list 0.463 g to 7.69 g, the median 2.35 g.5 g

Higher than 66% of 62 products listing rice protein (median 2.35 g).

Rutin10 mgRutin in Clark All-in-One against 1,232 products10 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.10 mg

74% of 1,232 products listing rutin give more (median 25 mg).

Saw Palmetto extract50 mgSaw Palmetto in Clark All-in-One against 1,109 products50 mg per serving; the middle half of products list 100 mg to 320 mg, the median 200 mg.50 mg

84% of 1,109 products listing saw palmetto give more (median 200 mg).

Seleniumas Sodium SeleniteSelenium (Form: as Sodium Selenite)200 mcg364%*Selenium in Clark All-in-One against 7,658 products200 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg200 mcg

Higher than 82% of 7,658 products listing selenium (median 55 mcg).

Tomato powder10 mgTomato in Clark All-in-One against 236 products10 mg per serving; the middle half of products list 10.75 mg to 100 mg, the median 31.5 mg.10 mg

75% of 236 products listing tomato give more (median 31.5 mg).

Turmeric600 mgTurmeric in Clark All-in-One against 2,369 products600 mg per serving; the middle half of products list 50 mg to 500 mg, the median 150 mg.600 mg

Higher than 81% of 2,369 products listing turmeric (median 150 mg).

Vanilla powder1.5 g
Vitamin Aas Beta-Carotene, Vitamin A Palmitate900 mcg
Vitamin B1as Thiamine Hydrochloride40 mg3,333%*Thiamin in Clark All-in-One against 9,830 products40 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg40 mg

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

Vitamin B12as Methylcobalamin500 mcg20,833%*Vitamin B12 in Clark All-in-One against 14,425 products500 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg500 mcg

Higher than 82% of 14,425 products listing vitamin B12 (median 36 mcg).

Vitamin B2as Riboflavin50 mg3,846%*Riboflavin in Clark All-in-One against 9,824 products50 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg50 mg

Higher than 86% of 9,824 products listing riboflavin (median 4 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)15 mg882%*Vitamin B6 in Clark All-in-One against 15,277 products15 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg15 mg

Higher than 68% of 15,277 products listing vitamin B6 (median 6 mg).

Vitamin Das Cholecalciferol2,000 IU (50 mcg)
Vitamin Eas D-Alpha-Tocopherol AcetateVitamin E (Form: as D-Alpha Tocopherol Acetate)200 IUVitamin E in Clark All-in-One against 6,459 products200 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.200 IU

Higher than 82% of 6,459 products listing vitamin E (median 30 IU).

Vitamin Eas Tocotrienol Complex20 mg
Vitamin K1100 mcg167%*Vitamin K in Clark All-in-One against 4,607 products200 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg200 mcg

Higher than 91% of 4,607 products listing vitamin K (median 80 mcg).

Vitamin K2100 mcg
Zincas Zinc Amino Acid Chelate20 mg182%*Zinc in Clark All-in-One against 13,186 products20 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg20 mg

Higher than 79% of 13,186 products listing zinc (median 11 mg).

Black Pepper5 mgBlack Pepper in Clark All-in-One against 2,363 products5 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.5 mg

33% of 2,363 products listing black pepper give more (median 5 mg).

Beta Glucan200 mgBeta-Glucans in Clark All-in-One against 335 products200 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.200 mg

Higher than 61% of 335 products listing beta-glucans (median 100 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 255085 (entered September 24, 2021), 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 65 mcg (2,600 IU) of vitamin D (2 rows of the label added together) is higher than 90% of the 14,175 vitamin D products that print an amount; 1,352 list more.
  • Its 667.88 mg of calcium (2 rows of the label added together) is higher than 94% of the 17,831 calcium products that print an amount; 1,131 list more.
  • Its 810 mg of potassium (2 rows of the label added together) is higher than 98% of the 11,614 potassium products that print an amount; 264 list more.
  • At 1 serving a day, the most its directions give, the label lists 418 mg of magnesium, 1.2 times the adult Tolerable Upper Intake Level.
  • At 1 serving a day, the most its directions give, the label lists 77 mg of niacin, 2.2 times the adult Tolerable Upper Intake Level.
  • 84% of the 1,109 products that print an amount of saw palmetto list more than its 50 mg of saw palmetto (median 200 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.

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
Suggested Use: Adults: One scoop daily (approx. 20 g). Scoop is inside. For best results, blend thoroughly with a shaker so the powder is evenly distributed.
For a sweet treat: Add it to your smoothie or fruit juice. For the coffee lover: Mix it in with your iced coffee or latte. For the health conscious: Add to any type of milk, whey, or yogurt. For the purist: Use just fresh water without additional taste influences.
Warnings
Cautions: Dietary supplements should not replace a balanced diet. Do not use past expiration date printed on label. Do not exceed recommended daily intake.
Keep away from children.
Allergens and what it does not contain
No sugar, gluten, artificial flavoring or coloring, or preservatives
Storage
Store at room temperature.

Source: label statements in DSLD label 255085.

How many labels does Clark All-in-One have?

One label is on file, entered on September 24, 2021.

  1. Label 255085 (current) Entered September 24, 2021 · on the market · 600 grams

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

Who makes it?

The label names Dr. Clark Research Association (distributor), San Gwann, Malta. All Dr. Clark Research Association Dr. Clark Zentrum products.

Where next?