
Natrol Vitamin D3 2,000 IU Tablets - Supports Bone & Joint Health, Immune Function - 90 Count


Vitamin D3
High RiskVitamin D3, also known as cholecalciferol, is a fat-soluble vitamin important for calcium metabolism and bone health. It is synthesized in the skin upon exposure to sunlight and is also found in some foods and supplements. Its primary function is to promote the absorption of calcium and phosphorus in the body.
Sustai Insights
Vitamin D3 offers functional benefits such as supporting bone health and immune function. However, excessive intake can lead to toxicity, presenting risks like hypercalcemia. Environmental concerns include its potential for bioaccumulation. Regulatory bodies impose usage restrictions due to these risks, resulting in a high overall risk assessment. Safe usage practices should be observed, and alternatives such as vitamin D2 may be considered.
Malic Acid
High RiskMalic acid is a naturally occurring organic acid found in various fruits, particularly apples. It plays a role in the metabolic processes of living organisms and is commonly used as a flavoring agent, pH regulator, and preservative in food and cosmetic products.
Sustai Insights
Malic acid serves as an effective pH adjuster and flavor enhancer, contributing to the sensory profile of products. However, it may cause skin and eye irritation and has high use restrictions, limiting its application. Regulatory bodies have noted these concerns, leading to restrictions on its use in certain products. Overall, the ingredient is considered high risk due to these factors, necessitating careful usage and consideration of safer alternatives.
Citric Acid
Medium RiskCitric acid is an alpha hydroxy acid used in personal care products primarily for its role as a pH adjuster and natural preservative. It occurs naturally in citrus fruits and is commonly utilized in various formulations for its chelating properties and mild exfoliation benefits.
Sustai Insights
Citric acid offers functional benefits as an effective preservative and pH stabilizer, contributing to product longevity and stability. It is biodegradable and derived from renewable sources. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, and reproductive toxicity. However, moderate use restrictions exist due to potential irritation at high concentrations. Environmental risks are limited, as citric acid is not known to accumulate in ecosystems. Regulatory agencies have no significant advisories against its use. Overall, it is assessed as a medium-risk ingredient, with safe usage practices recommended and alternatives available.
Sand
Low RiskSand is loose, granular particles of worn or disintegrated rock, primarily composed of silica. It is commonly used as an abrasive, filler, or in construction and landscaping for its structural properties.
Sustai Insights
Sand offers functional benefits such as providing bulk and texture in various products, and it is generally considered to have low health risks, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmentally, sand does not contribute significantly to pollution and is not bioaccumulative. Regulatory bodies do not impose restrictions on sand usage, maintaining its low-risk status. Safe usage practices should be followed to avoid inhalation of fine particles. Overall, sand is a low-risk ingredient with no notable negative impacts.
Stearic Acid
Low RiskStearic acid is a naturally occurring fatty acid commonly found in animal and vegetable fats. It functions primarily as an emulsifier, thickener, and stabilizer in cosmetic and personal care products, providing texture and consistency.
Sustai Insights
Stearic acid offers functional benefits such as effective emulsification and stabilization of formulations. It is derived from renewable sources and is biodegradable, contributing to its sustainability profile. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks are also low, with no significant pollutants or bioaccumulation concerns noted. Regulatory bodies, including the FDA, do not impose restrictions on its use. Overall, stearic acid is assessed as low risk, and its safe usage practices are well-established, with no significant alternatives needed.
Maltodextrin
Low RiskMaltodextrin is a saccharide material obtained from starch through partial hydrolysis. It is commonly used as a thickener, filler, or preservative in food and cosmetic products due to its ability to enhance texture and stability.
Sustai Insights
Maltodextrin serves as an effective thickener and stabilizer in various products, and it is typically derived from renewable sources. Health risks are minimal, as it poses low concerns for carcinogenicity, allergies, and developmental toxicity. Environmental impacts are also low, with no significant pollutant or bioaccumulation potential. Regulatory bodies do not impose major restrictions on its use. Overall, maltodextrin presents a low-risk profile, making it a widely accepted ingredient in food and cosmetic formulations.
Magnesium Stearate
Low RiskMagnesium stearate is a magnesium salt of stearic acid, commonly used as a lubricant and anti-caking agent in pharmaceuticals and cosmetic products. It helps in the manufacturing process by preventing ingredients from clumping together and ensuring even distribution in formulations.
Sustai Insights
Magnesium stearate is recognized for its functional benefits as a lubricant and anti-caking agent, enhancing product stability. It is considered low risk regarding health concerns, including carcinogenicity and allergenic potential, with no significant environmental hazards reported. Regulatory bodies, including the FDA, have not imposed major restrictions, supporting its safe use in various applications. Recommended usage levels are typically low, maintaining safety in formulations. Overall, the ingredient is assessed as low risk, with no significant adverse health or environmental impacts identified.
Xylitol
Low RiskXylitol is a sugar alcohol used primarily as a sweetener. It is commonly found in oral care products and food items, offering a sweetening effect similar to sugar but with fewer calories. It serves as a humectant and can contribute to dental health by reducing the risk of cavities.
Sustai Insights
Xylitol provides functional benefits as a low-calorie sweetener and may help improve dental health by inhibiting cavity-causing bacteria. It is generally recognized as safe by the FDA with low concern for cancer, allergies, or reproductive toxicity. Environmental risks are minimal, as xylitol is biodegradable and does not accumulate in the ecosystem. Regulatory bodies have not imposed significant restrictions. Overall, xylitol presents a low risk when used appropriately, with no major adverse health effects reported and sustainable sourcing options available.
Carboxylmethylcellulose Sodium
Low RiskCarboxymethylcellulose sodium is a sodium salt derived from cellulose, commonly used as a thickener, stabilizer, or emulsifier in various products. It is soluble in water and forms a gel-like consistency, making it effective in food, cosmetics, and pharmaceutical formulations.
Sustai Insights
Carboxymethylcellulose sodium offers functional benefits as a thickening agent and stabilizer, contributing to product texture and consistency. It is generally recognized as safe, with low health risks, including no significant concerns for carcinogenicity or allergies. Environmentally, it poses minimal risks, with no bioaccumulation noted. Regulatory bodies do not impose restrictions on its use, affirming its safety. Overall, the risk level is assessed as low, making it a viable option for formulation. Safe usage practices should be observed, and alternatives like guar gum may be considered for those seeking plant-based options.
Sand
Low RiskSand is loose, granular particles of worn or disintegrated rock, primarily composed of silica. It is commonly used as an abrasive, filler, or in construction and landscaping for its structural properties.
Sustai Insights
Sand offers functional benefits such as providing bulk and texture in various products, and it is generally considered to have low health risks, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmentally, sand does not contribute significantly to pollution and is not bioaccumulative. Regulatory bodies do not impose restrictions on sand usage, maintaining its low-risk status. Safe usage practices should be followed to avoid inhalation of fine particles. Overall, sand is a low-risk ingredient with no notable negative impacts.
Vitamin D3
High RiskVitamin D3, also known as cholecalciferol, is a fat-soluble vitamin important for calcium metabolism and bone health. It is synthesized in the skin upon exposure to sunlight and is also found in some foods and supplements. Its primary function is to promote the absorption of calcium and phosphorus in the body.
Sustai Insights
Vitamin D3 offers functional benefits such as supporting bone health and immune function. However, excessive intake can lead to toxicity, presenting risks like hypercalcemia. Environmental concerns include its potential for bioaccumulation. Regulatory bodies impose usage restrictions due to these risks, resulting in a high overall risk assessment. Safe usage practices should be observed, and alternatives such as vitamin D2 may be considered.
Stearic Acid
Low RiskStearic acid is a naturally occurring fatty acid commonly found in animal and vegetable fats. It functions primarily as an emulsifier, thickener, and stabilizer in cosmetic and personal care products, providing texture and consistency.
Sustai Insights
Stearic acid offers functional benefits such as effective emulsification and stabilization of formulations. It is derived from renewable sources and is biodegradable, contributing to its sustainability profile. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, or reproductive toxicity. Environmental risks are also low, with no significant pollutants or bioaccumulation concerns noted. Regulatory bodies, including the FDA, do not impose restrictions on its use. Overall, stearic acid is assessed as low risk, and its safe usage practices are well-established, with no significant alternatives needed.
Citric Acid
Medium RiskCitric acid is an alpha hydroxy acid used in personal care products primarily for its role as a pH adjuster and natural preservative. It occurs naturally in citrus fruits and is commonly utilized in various formulations for its chelating properties and mild exfoliation benefits.
Sustai Insights
Citric acid offers functional benefits as an effective preservative and pH stabilizer, contributing to product longevity and stability. It is biodegradable and derived from renewable sources. Health risks are low, with minimal concerns regarding carcinogenicity, allergies, and reproductive toxicity. However, moderate use restrictions exist due to potential irritation at high concentrations. Environmental risks are limited, as citric acid is not known to accumulate in ecosystems. Regulatory agencies have no significant advisories against its use. Overall, it is assessed as a medium-risk ingredient, with safe usage practices recommended and alternatives available.
Malic Acid
High RiskMalic acid is a naturally occurring organic acid found in various fruits, particularly apples. It plays a role in the metabolic processes of living organisms and is commonly used as a flavoring agent, pH regulator, and preservative in food and cosmetic products.
Sustai Insights
Malic acid serves as an effective pH adjuster and flavor enhancer, contributing to the sensory profile of products. However, it may cause skin and eye irritation and has high use restrictions, limiting its application. Regulatory bodies have noted these concerns, leading to restrictions on its use in certain products. Overall, the ingredient is considered high risk due to these factors, necessitating careful usage and consideration of safer alternatives.
Maltodextrin
Low RiskMaltodextrin is a saccharide material obtained from starch through partial hydrolysis. It is commonly used as a thickener, filler, or preservative in food and cosmetic products due to its ability to enhance texture and stability.
Sustai Insights
Maltodextrin serves as an effective thickener and stabilizer in various products, and it is typically derived from renewable sources. Health risks are minimal, as it poses low concerns for carcinogenicity, allergies, and developmental toxicity. Environmental impacts are also low, with no significant pollutant or bioaccumulation potential. Regulatory bodies do not impose major restrictions on its use. Overall, maltodextrin presents a low-risk profile, making it a widely accepted ingredient in food and cosmetic formulations.
Magnesium Stearate
Low RiskMagnesium stearate is a magnesium salt of stearic acid, commonly used as a lubricant and anti-caking agent in pharmaceuticals and cosmetic products. It helps in the manufacturing process by preventing ingredients from clumping together and ensuring even distribution in formulations.
Sustai Insights
Magnesium stearate is recognized for its functional benefits as a lubricant and anti-caking agent, enhancing product stability. It is considered low risk regarding health concerns, including carcinogenicity and allergenic potential, with no significant environmental hazards reported. Regulatory bodies, including the FDA, have not imposed major restrictions, supporting its safe use in various applications. Recommended usage levels are typically low, maintaining safety in formulations. Overall, the ingredient is assessed as low risk, with no significant adverse health or environmental impacts identified.
Xylitol
Low RiskXylitol is a sugar alcohol used primarily as a sweetener. It is commonly found in oral care products and food items, offering a sweetening effect similar to sugar but with fewer calories. It serves as a humectant and can contribute to dental health by reducing the risk of cavities.
Sustai Insights
Xylitol provides functional benefits as a low-calorie sweetener and may help improve dental health by inhibiting cavity-causing bacteria. It is generally recognized as safe by the FDA with low concern for cancer, allergies, or reproductive toxicity. Environmental risks are minimal, as xylitol is biodegradable and does not accumulate in the ecosystem. Regulatory bodies have not imposed significant restrictions. Overall, xylitol presents a low risk when used appropriately, with no major adverse health effects reported and sustainable sourcing options available.
Carboxylmethylcellulose Sodium
Low RiskCarboxymethylcellulose sodium is a sodium salt derived from cellulose, commonly used as a thickener, stabilizer, or emulsifier in various products. It is soluble in water and forms a gel-like consistency, making it effective in food, cosmetics, and pharmaceutical formulations.
Sustai Insights
Carboxymethylcellulose sodium offers functional benefits as a thickening agent and stabilizer, contributing to product texture and consistency. It is generally recognized as safe, with low health risks, including no significant concerns for carcinogenicity or allergies. Environmentally, it poses minimal risks, with no bioaccumulation noted. Regulatory bodies do not impose restrictions on its use, affirming its safety. Overall, the risk level is assessed as low, making it a viable option for formulation. Safe usage practices should be observed, and alternatives like guar gum may be considered for those seeking plant-based options.
Experience the benefits of Natrol Fast Dissolve Vitamin D3, designed to support bone and joint health while boosting your immune system. This convenient dietary supplement comes in a delicious strawberry flavor, making it easy to incorporate into your daily routine.
- Bone & Joint Health: Each tablet delivers 2,000 IU of Vitamin D3, essential for maintaining strong bones and joints, especially in those with low levels.
- Immune Support: Supports immune function, helping the body restore optimal Vitamin D3 levels for overall wellness.
- Fast-Dissolve Formula: No water needed; place the tablet under your tongue for quick absorption and convenience.
- Quality Ingredients: 100% drug-free, free from common allergens like milk, eggs, and nuts, making it suitable for a variety of dietary needs.
- Easy to Use: Take one tablet daily with a meal to maximize absorption, and enjoy a 90-day supply for lasting support.
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Experience the benefits of Natrol Fast Dissolve Vitamin D3, designed to support bone and joint health while boosting your immune system. This convenient dietary supplement comes in a delicious strawberry flavor, making it easy to incorporate into your daily routine.
- Bone & Joint Health: Each tablet delivers 2,000 IU of Vitamin D3, essential for maintaining strong bones and joints, especially in those with low levels.
- Immune Support: Supports immune function, helping the body restore optimal Vitamin D3 levels for overall wellness.
- Fast-Dissolve Formula: No water needed; place the tablet under your tongue for quick absorption and convenience.
- Quality Ingredients: 100% drug-free, free from common allergens like milk, eggs, and nuts, making it suitable for a variety of dietary needs.
- Easy to Use: Take one tablet daily with a meal to maximize absorption, and enjoy a 90-day supply for lasting support.

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Customer Reviews
Customers’ View
Customers appreciate the Vitamin D3 Supplement for its pleasant taste and effective formulation. Many users highlight its quick-dissolving nature, making it easy to consume without water, with one customer noting it dissolves 'within a couple of minutes.' The vitamin content is frequently praised, particularly by those who have health conditions requiring adequate Vitamin D levels, with comments like, 'These have been the most wonderful alternative to taking the supplement.' Additionally, customers find the product to be a good value, often mentioning its affordability. Overall, this supplement not only supports health goals but also aligns well with the preferences of those seeking palatable and convenient health solutions.
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