Sentry Adults
21st Century
Sentry Adults
4.7
★ ★ ★ ★ ★
(23601 ratings)
Vitamin K 25 mcg
Niacin 20 mg
Potassium 80 mg
Copper 0.5 mg
Iron 18 mg
Manganese 2.3 mg
Molybdenum 45 mcg
Score 60.0
An economical multivitamin offering a wide range of essential nutrients, best suited for basic dietary gap filling due to its low cost and comprehensive profile. Less ideal for targeted health goals or optimal nutrient absorption.
Quantity: 130 Tablet(s)Servings size: 1 Tablet(s) (130 servings)
Selected goals:
Other goals:
General Health
Digestive Health
Bone Health
Heart Health
Cardiovascular Support
leaderboard Score 60.0
An economical multivitamin offering a wide range of essential nutrients, best suited for basic dietary gap filling due to its low cost and comprehensive profile. Less ideal for targeted health goals or optimal nutrient absorption.
insights Analysis
21st Century Sentry Adults is positioned as a daily foundational multivitamin to help fill nutritional gaps. It provides 25 essential vitamins and minerals at generally recommended daily allowance (RDA) levels. The large quantity per bottle and extremely low price per serving make it an attractive option for budget-conscious consumers seeking broad-spectrum nutrient coverage. However, a closer look at the ingredient forms reveals compromises in bioavailability, such as iron as ferrous fumarate and magnesium as magnesium oxide, which may not be absorbed as efficiently as chelated forms. Similarly, the use of synthetic vitamin forms like cyanocobalamin for B12 and DL-alpha-tocopheryl acetate for Vitamin E means the body might not utilize these nutrients as effectively compared to their natural or active counterparts. Online reviews often highlight its affordability and convenience, but nutritionists frequently recommend products with higher quality, more absorbable nutrient forms for optimal health benefits, especially when targeting specific health goals beyond basic deficiency prevention.
- Provides a wide spectrum of essential vitamins and minerals for broad nutritional coverage.
- Extremely affordable price per serving, offering great value for budget-conscious consumers.
- High number of servings per bottle (130 tablets) ensures a long-lasting supply.
- Uses less bioavailable forms of certain minerals (e.g., Magnesium Oxide, Ferrous Fumarate), which may reduce absorption efficiency.
- Contains synthetic forms of some vitamins (e.g., Cyanocobalamin, DL-Alpha-Tocopheryl Acetate) that are generally not as well-utilized by the body as natural or active forms.
- Dosages for specific goals are often at baseline RDA levels, not therapeutic for targeted support beyond preventing deficiency.
- Individuals taking blood-thinning medications should consult a healthcare professional due to the presence of Vitamin K (Phytonadione).
- The iron content (18mg) may be high for some individuals, particularly men or post-menopausal women, who do not have an iron deficiency, as excess iron can be harmful.
$8.00($0.06 per serving)
 iHerb | $ 8.00 | |
 Amazon | $ 9.95 | |
 Walmart | $ 12.76 |
bolt Effectiveness for goals
Daily multivitamin and multimineral supplements can help fill nutritional gaps in the diet, ensuring the body receives essential vitamins and minerals for overall health. These nutrients are crucial for various bodily functions, including energy production, immune support, and bone health. They are not intended to replace a balanced diet but to complement it.
Vitamin D3 is essential for the body to absorb calcium from the gut, making them synergistic for bone health. Without sufficient Vitamin D3, calcium absorption is impaired, regardless of calcium intake. Together, they contribute to the maintenance of strong bones and teeth.
The group of B vitamins plays a critical role in cellular metabolism, helping to convert food into energy. They are essential for nerve function, red blood cell formation, and maintaining healthy skin, hair, and eyes. Each B vitamin has unique functions, but they often work together to support overall vitality.
Yes, Vitamin C is known to significantly enhance the absorption of non-heme iron (iron from plant-based sources and supplements). It helps convert iron into a more readily absorbable form in the digestive tract. This interaction is beneficial for individuals looking to optimize their iron intake.
Zinc is a crucial mineral that supports the normal development and function of immune cells. It is involved in numerous immune processes, including maintaining skin integrity and wound healing. Adequate zinc intake is important for a healthy immune response.
schedule Dosage, timing & forms
Unless otherwise indicated on the packaging, tablets are typically designed to be swallowed whole with water. Breaking or chewing might alter the intended release or absorption of the ingredients.
High doses of zinc can sometimes interfere with copper absorption over time. Multivitamin formulations typically provide zinc and copper in balanced amounts to minimize such interactions and support adequate intake of both essential minerals.
Calcium and magnesium can compete for absorption sites in the intestine, especially when consumed in very high amounts. However, the quantities found in a typical multivitamin are usually formulated to allow for effective absorption of both minerals.
This supplement is formulated to be taken once daily to provide essential vitamins and minerals. Consistent daily use is generally recommended to maintain adequate nutrient levels.
Taking a multivitamin with a meal is generally recommended to help reduce the chance of stomach upset. Food can also enhance the absorption of certain fat-soluble vitamins present in the supplement, such as Vitamins A, D, E, and K.
health_and_safety Safety & interactions
Yes, high doses of iron, such as the ferrous fumarate found in this product, can sometimes compete with zinc and calcium for absorption if taken simultaneously. To optimize absorption, it is often recommended to take iron supplements at a different time from high-calcium foods or supplements. This interaction can be managed by staggering intake.
Yes, Vitamin K, in its phytonadione form, plays a crucial role in blood clotting and can potentially reduce the effectiveness of anticoagulant medications like warfarin. Individuals taking such medications should consult a healthcare professional before using any supplement containing Vitamin K. Close monitoring may be necessary.
Common gastrointestinal side effects can include mild stomach upset, constipation, diarrhea, or nausea. These symptoms are often transient and may be lessened by taking the supplement with food. If symptoms persist or worsen, consulting a healthcare provider is recommended.
While generally safe at recommended doses, high intake of fat-soluble vitamins (A, D, E, K) over time can accumulate in the body, potentially leading to adverse effects. It is important not to exceed the tolerable upper intake levels from all sources. Always adhere to the suggested serving size.
Yes, calcium, in forms like dicalcium phosphate and calcium carbonate, can interfere with the absorption of some medications. This includes certain antibiotics (like tetracyclines and fluoroquinolones) and thyroid hormones. It is generally advised to take these medications at different times of the day than calcium supplements.
Ingredients
| Ingredient | Amount per serving |
|---|---|
| Vitamin A (Vitamin A Acetate, Beta-Carotene) | 1050 mcg |
| Vitamin C (Ascorbic Acid) | 60 mg |
| Vitamin D3 (Cholecalciferol) | 25 mcg |
| Vitamin E (DL-Alpha-Tocopheryl Acetate) | 13.5 mg |
| Vitamin K (Phytonadione) | 25 mcg |
| Thiamine (Vitamin B1, Thiamine Mononitrate) | 1.5 mg |
| Riboflavin (Vitamin B2) | 1.7 mg |
| Niacin (Niacinamide) | 20 mg |
| Vitamin B6 (Pyridoxine Hydrochloride) | 2 mg |
| Folate | 667 mcg DFE |
| Vitamin B12 (Cyanocobalamin) | 6 mcg |
| Biotin | 30 mcg |
| Pantothenic Acid (D-Calcium Pantothenate) | 10 mg |
| Calcium (Dicalcium Phosphate, Calcium Carbonate) | 200 mg |
| Iron (Ferrous Fumarate) | 18 mg |
| Phosphorus (Dicalcium Phosphate) | 20 mg |
| Iodine (Potassium Iodide) | 150 mcg |
| Magnesium (Magnesium Oxide) | 50 mg |
| Zinc (Zinc Oxide) | 11 mg |
| Selenium (Sodium Selenate) | 55 mcg |
| Copper (Copper Sulfate) | 0.5 mg |
| Manganese (Manganese Sulfate) | 2.3 mg |
| Chromium (Chromium Picolinate) | 35 mcg |
| Molybdenum (Sodium Molybdate) | 45 mcg |
| Chloride (Potassium Chloride) | 72 mg |
| Potassium (Potassium Chloride) | 80 mg |
Categories
Niacin 70.0
Provides 20mg of Niacin as Niacinamide, a non-flushing form, which is a good daily dose for energy metabolism, DNA repair, and overall cellular health without causing the uncomfortable 'niacin flush'.
Selenium 70.0
Provides 55mcg of Selenium as Sodium Selenate. Selenium is a powerful antioxidant and plays a key role in thyroid hormone metabolism and immune function. This dosage provides a good daily amount for general health maintenance.
Chromium 70.0
Contains 35mcg of Chromium as Chromium Picolinate. Chromium is an essential trace mineral involved in carbohydrate and lipid metabolism and supports insulin sensitivity. Chromium Picolinate is a well-researched and bioavailable form.
Goals
General Health 75.0
The product is well-suited for its primary goal of general health, offering a wide array of vitamins and minerals to cover daily nutritional bases and prevent common deficiencies. Its excellent affordability makes it a practical choice for consistent daily supplementation.
Energy 70.0
The comprehensive blend of B vitamins (Thiamine, Riboflavin, Niacin, B6, Pantothenic Acid, B12), along with Iron and Magnesium, are crucial cofactors in cellular energy production pathways. While sufficient to prevent deficiency-related fatigue, higher potencies or more active forms of B vitamins might offer a more noticeable 'boost'.
Bone Health 70.0
This multivitamin provides essential bone-supporting nutrients including Calcium (400mg), Vitamin D3 (25mcg/1000 IU), Magnesium (50mg), Phosphorus, and Vitamin K. The Vitamin D3 dose is beneficial, but the calcium dosage is moderate and magnesium relatively low for comprehensive standalone bone support, typically requiring additional dietary sources.
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