Vitamins & Supplements · Top 8

The 8 Best Supplements to Support Weight Loss

Discover the top supplements that can aid your weight loss journey, based on scientific evidence and expert recommendations.

By HealthyCrispy Editorial Updated Aug 2026 Evidence-reviewed

Navigating weight loss can be challenging, and the right supplements may provide the support you need. This guide outlines eight effective supplements that have been shown to aid in weight management, alongside healthy lifestyle choices.

While these supplements can complement your weight loss efforts, it's essential to remember that they should not replace a balanced diet and regular exercise. Always consult a healthcare professional before starting any new supplement regimen.

Part of our Weight Loss hub.

Best overall

Green Tea Extract

★★★★★ 4.7

Green tea extract is rich in catechins, which may help boost metabolism and fat oxidation. Studies suggest it can enhance weight loss when combined with a healthy diet.

✔ Boosts metabolism

✔ Rich in antioxidants

− May cause stomach upset

Typically 250-500 mg per day Check price on Amazon →

Best fiber supplement

Glucomannan

★★★★★ 4.5

Glucomannan is a natural dietary fiber that expands in your stomach, promoting a feeling of fullness. This may help reduce calorie intake and support weight loss efforts.

✔ Promotes satiety

✔ Natural fiber source

− Requires plenty of water

About 1 gram before meals Check price on Amazon →

Best for fat loss

Conjugated Linoleic Acid (CLA)

★★★★☆ 4.4

CLA is a fatty acid found in meat and dairy that may help reduce body fat and maintain lean muscle mass. Research indicates it can aid in weight loss when incorporated into a healthy lifestyle.

✔ May reduce body fat

✔ Supports muscle retention

− Results can be variable

Typically 3.2 grams per day Check price on Amazon →

Best protein supplement

Whey Protein Isolate

★★★★★ 4.6

Whey protein isolate is a high-quality protein source that can help increase satiety and muscle mass. It may be beneficial for weight loss when used as part of a balanced diet.

✔ Supports muscle growth

✔ Increases satiety

− May not be suitable for lactose intolerant individuals

20-30 grams per serving Check price on Amazon →

Best stimulant

Bitter Orange Extract

★★★★☆ 4.2

Bitter orange contains synephrine, which may help increase metabolism and promote fat burning. However, it should be used cautiously due to potential side effects.

✔ May enhance metabolism

✔ Natural source

− Potential side effects for some

Typically 500 mg per day Check price on Amazon →

Best for energy

L-Carnitine

★★★★☆ 4.3

L-Carnitine plays a role in fat metabolism and may enhance energy levels during workouts. It has been shown to aid weight loss when combined with exercise.

✔ Boosts energy

✔ Supports fat metabolism

− Results may take time

500-2,000 mg per day Check price on Amazon →

Best for cravings

Chromium Picolinate

★★★★☆ 4.4

Chromium picolinate may help regulate blood sugar levels and curb cravings, making it easier to stick to a healthy eating plan. It's often used to support weight loss.

✔ May reduce cravings

✔ Supports blood sugar balance

− Not effective for everyone

200-1,000 mcg per day Check price on Amazon →

Best for gut health

Probiotics

★★★★★ 4.5

Probiotics can improve gut health, which is linked to weight management. Certain strains may help with weight loss by influencing metabolism and appetite.

✔ Supports gut health

✔ May aid weight loss

− Effects can vary by individual

1-10 billion CFUs daily Check price on Amazon →

Key takeaways

Supplements can support weight loss but are most effective with a balanced diet and exercise.
Consult a healthcare professional before starting any new supplement.
Individual results can vary; what works for one person may not work for another.

Prices and availability are accurate as of publication. As an Amazon Associate, HealthyCrispy earns from qualifying purchases. This content is educational and not medical advice.