Is 500 IU of Vitamin D3 safe?

Yes — this is 0.8× the recommended daily intake of 0.015 mg, which is within safe limits.

Thyroid Lift by Planetary Herbals — Ingredients, Evidence & Safety

🟢 90/100

This product looks safe

Contains proprietary blend — exact ingredient amounts not disclosed
58% of ingredients have research evidence

A Label Compliance Grade

What the Evidence Says

The profile includes essential vitamins A, C, and D3, which support immune function and cellular health. Research provides strong evidence for these nutrients in maintaining general physiological wellness. However, the overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Tablet(s) Serving Size

30 Servings

Other Combinations Product Type

58% Evidence Coverage

Supplement Facts — Evidence Check

Calories

5 Calorie(s)

Total Carbohydrates

1 Gram(s) (1% DV)

Vitamin A

1500 IU (30% DV)

Vitamin C

125 mg (208% DV)

Vitamin D3

500 IU (125% DV)

✅ Within RDA (0.8× RDA of 0.015 mg) 📚 608 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.0125mg UL 0.1mg

Vitamin E

160 IU (533% DV)

📊 7.1× RDA — above typical dose (UL: 1000 mg) 📚 179 studies (Tier A: 3, B: 90)

RDA 15mg This product: 107.2mg UL 1000mg

Riboflavin

12.5 mg (735% DV)

📊 9.6× RDA — above typical dose 📚 13 studies (Tier A: 0, B: 1)

RDA 1.3mg This product: 12.5mg

Niacin

20 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 196 studies (Tier A: 5, B: 63)

RDA 14mg This product: 20mg UL 35mg

Vitamin B6

50 mg (2500% DV)

📊 38.5× RDA — above typical dose (UL: 100 mg) 📚 114 studies (Tier A: 3, B: 35)

RDA 1.3mg This product: 50mg UL 100mg

Folate

200 mcg (50% DV)

✅ Within RDA (0.5× RDA of 0.4 mg) 📚 226 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 0.2mg UL 1.0mg

Vitamin B12

100 mcg (1667% DV)

📊 41.7× RDA — above typical dose 📚 139 studies (Tier A: 1, B: 44)

RDA 0.0024mg This product: 0.1mg

Calcium

82 mg (8% DV)

Pantothenic Acid

50 mg (500% DV)

📊 10.0× RDA — above typical dose 📚 2 studies — no high-quality reviews

RDA 5mg This product: 50mg

Iodine

112 mcg (75% DV)

✅ Within RDA (0.7× RDA of 0.15 mg) 📚 245 studies (Tier A: 4, B: 133)

RDA 0.15mg This product: 0.112mg UL 1.1mg

Zinc

8 mg (53% DV)

✅ Within RDA (0.7× RDA of 11 mg) 📚 263 studies (Tier A: 6, B: 134)

RDA 11mg This product: 8mg UL 40mg

Selenium

100 mcg (143% DV)

✅ 1.8× RDA — within safe limits 📚 173 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.1mg UL 0.4mg

Copper

1 mg (50% DV)

✅ 1.1× RDA — within safe limits 📚 37 studies (Tier A: 0, B: 11)

RDA 0.9mg This product: 1mg UL 10mg

Manganese

1 mg (50% DV)

✅ Within RDA (0.4× RDA of 2.3 mg) 📚 9 studies — no high-quality reviews

RDA 2.3mg This product: 1mg UL 11mg

Proprietary Blend

1.72 Gram(s)

Other Ingredients

Dibasic Calcium Phosphate Stearic Acid silicified Microcrystalline Cellulose modified Cellulose Gum Silica

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Suggested Use: 2 tablets twice daily with or without food.

⚠️ Warnings & Precautions

Contains soy.

Caution: If you are pregnant, may become pregnant, breastfeeding, or taking any prescription drug, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

🧪 Formulation Notes

Supports Healthy Thyroid

Formulated by Michael Tierra L.Ac, O.M.D

Thyroid Lift is a unique, clinically derived herbal-nutrient complex, designed to support healthy thyroid function and metabolic efficiency. The formula features guggul, a gum resin from India, shown in preclinical research to promote healthy thyroid activity. Additional key nutrients and botanicals are included to support the body's normal production of thyroid hormones.

Additional Information

Store in a cool, dry place.

Product Details

UPC / SKU 0 21078 10551 0

DSLD Entry Date 2020-02-26

Product Type Other Combinations

Form Tablet or Pill

Brand Planetary Herbals

DSLD ID 213301

Data Updated 2026-04-11

Research Evidence

337 Research Sources

54 Avg Quality Score

161 Meta Analysis

68 Systematic Review

51 Rct

48 Clinical Trial

2 Other

2 Regulatory Source

1 Narrative Review

1 Cochrane Review

1 Guideline

1 Openfda Safety

A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis

Meta Analysis BMJ (Clinical research ed.) 2011

PubMed DOI

A Fortification of staple foods with vitamin A for vitamin A deficiency

Systematic Review The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age

Narrative Review The Cochrane database of systematic reviews 2016

PubMed DOI Cochrane

A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI

A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Journal of sport and health science 2023

PubMed DOI

A Food fortification with multiple micronutrients: impact on health outcomes in general population

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI

A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI

View all evidence for Vitamin A →