VITAMIN D
D2 vs D3
Sources, vegan status and what research says about raising levels.
Compare →Goal
Healthy Aging
Ingredients researchers have studied in older adults, including vitamin D and B12 status and creatine combined with resistance training.
Ingredients researchers have studied
VITAMIN
Vitamin D
A fat-soluble vitamin sold as D2 or D3. Labels list micrograms (mcg), often with IU in parentheses.
Studied for: Correcting low vitamin D status · Bone health (with calcium)
AMINO ACID DERIVATIVE
Creatine
One of the most researched sports supplements. Forms and formats vary widely in cost per 5 g.
Studied for: High-intensity exercise performance · Lean mass with resistance training
FATTY ACID
Omega-3
EPA and DHA from fish or algae. The “fish oil” number on the front is rarely the omega-3 number.
Studied for: Triglyceride levels · Cardiovascular outcomes
PROTEIN
Collagen
Collagen is the main structural protein in skin, tendons and bone. Supplements are usually hydrolyzed collagen peptides
Research in progress
VITAMIN
Vitamin B12
Vitamin B12 is needed for red blood cell formation, nerve function and DNA synthesis. It is found naturally almost only
Studied for: Preventing or correcting deficiency
MINERAL
Calcium
Calcium is the most abundant mineral in the body and the main structural mineral in bones and teeth. Supplements are mos
Studied for: Bone health (with vitamin D)
Comparisons
Products
Bright Daily Creatine Gummies (Berry)
Bright Daily · Demo
- Primary ingredient
- Creatine Monohydrate
- Per serving
- 3 g creatine
- Servings
- 30
- Format
- Gummies
- Price
- $29.99*
- Per serving cost
- $1.00
Not verified
Bright Daily Vitamin D3 Gummies
Bright Daily · Demo
- Primary ingredient
- Vitamin D3 (Cholecalciferol)
- Per serving
- 25 mcg (1,000 IU) vitamin D
- Servings
- 30
- Format
- Gummies
- Price
- Not available
- Per serving cost
- —
Not verified
Harbor & Pine Triple Strength Omega-3
Harbor & Pine · Demo
- Primary ingredient
- Fish Oil
- Per serving
- 1,100 mg EPA + DHA
- Servings
- 45
- Format
- Softgels
- Price
- $27.99*
- Per serving cost
- $0.62
Not verified
Kestrel Sport Creatine Gummies 5 g
Kestrel Sport · Demo
- Primary ingredient
- Creatine Monohydrate
- Per serving
- 5 g creatine
- Servings
- 30
- Format
- Gummies
- Price
- $44.99*
- Per serving cost
- $1.50
Manufacturer claim only
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Guides
This page is educational and is not medical advice. Talk to a healthcare professional before starting a supplement, especially if you have a medical condition, take medications, or are pregnant or breastfeeding.