FAQ | Fast Protein | Whey Isolate, Certifications, Sourcing & More
Unflavored Protein Powder | Whey Protein Isolate in California near San Jose | FREE Delivery

Fast Protein® 100% Whey Protein Isolate From Wisconsin. For People Who Read Labels.

FAQ | Fast Protein

Frequently Asked Questions

About Fast Protein

What is Fast Protein?
Fast Protein is a registered trademark supplement brand producing whey protein powder, founded in the San Francisco Bay Area near San Jose, CA. Fast Protein is a BIPOC-owned business and a Fair Trade USA partner, contributing 10% of gross sales to Fair Trade USA, located in Oakland, CA.

Why Choose Fast Protein?
Fast Protein is dedicated to clean-label nutrition: single-source US ingredients, no added sugar, no artificial flavors, colors, or preservatives, and a strict 5-ingredients-or-less policy. Our unflavored whey isolate has just one ingredient. We oversee every step of our supply chain for full traceability from Wisconsin dairy farms to your bag.

Is my payment processing secure?
Yes. We use Chase Bank for single orders and Stripe for recurring charges. All credit card transactions are PCI compliant. See details here.

Product & Ingredients

What are the types of sweeteners used in Fast Protein products?
It depends on the product. Our unflavored whey isolate contains zero sweeteners of any kind — no sucralose, no stevia, no sugar, nothing. Our flavored protein powders (Chocolate, Vanilla) use Sucralose, which is FDA approved and zero on the glycemic index. Always check the individual product label for the specific sweetener used.

Is Fast Protein clean label?
Yes. Our unflavored whey isolate contains one ingredient: 100% Whey Protein Isolate. No sugar, no sweeteners, no lecithin, no gums, no thickeners, no carrageenan, no artificial flavors, no artificial colors, no preservatives, no fillers, and no additives of any kind. No bleaching agents (no hydrogen peroxide, no benzoyl peroxide) are used in production.

Is your protein powder natural?
Yes. Our whey is produced with a strict chain of custody using zero chemical modifications, additives, preservatives, or antibiotics. 100% Whey Isolate — no concentrate blended in.

Are there any artificial flavors, colors, or dyes?
No. We do not add artificial flavors, colors, or dyes to our whey powders.

What makes Fast Protein powder great?
Our whey isolate delivers 30g of protein per serving, zero sugar, zero fat, and zero carbs. It is made in the US with ingredients sourced exclusively from Wisconsin. Our unflavored whey is one single ingredient — the purest form of whey protein available. It mixes smoothly with no clumping or aftertaste.

What is the difference between whey isolate and whey concentrate?
Whey isolate is more refined: 90%+ protein purity vs. 70–80% for concentrate. Isolate has virtually no lactose, zero fat, and zero carbs per serving. It is generally easier to digest and better suited for clean-label, keto, and lactose-sensitive consumers. Fast Protein uses 100% isolate — no concentrate blended in.

Why Unflavored Protein?
Our unflavored whey isolate is the purest option for everyday nutrition:

  • One ingredient: 100% Whey Protein Isolate
  • 30g of high-quality whey protein isolate per serving, sourced from Wisconsin
  • Keto and diabetic-friendly (zero carbs, zero sugar, ultra-low glycemic index)
  • Virtually lactose free (<1g per serving)
  • Versatile — add to shakes, smoothies, oatmeal, baking, yogurt, soups, and more
  • Never get tired of the same flavor — customize it however you like

Certifications & Testing

What certifications does Fast Protein have?
Our unflavored whey isolate is produced in a facility with the following certifications:

  • Kosher certified
  • Halal certified
  • NSF-certified manufacturing facility (FDA-compliant)
  • SQF Level III — Food Safety & Quality
  • rBST free — no artificial growth hormones
  • European Union compliant
  • California Proposition 65 compliant when consumed per dietary recommendations

Is Fast Protein tested for heavy metals and banned substances?
Yes. Our whey is produced in an NSF-certified, FDA-compliant facility and is tested against more than 270 substances banned by major athletic organizations. The product complies with California Proposition 65 standards when consumed per dietary recommendations.

Is Fast Protein safe for competitive athletes?
Yes. Our whey adheres to NSF standards covering 270+ substances banned by most major athletic organizations, making it a safe choice for competitive athletes subject to drug testing.

Is Fast Protein Halal?
Yes. Our unflavored whey isolate is Halal certified.

Is Fast Protein Kosher?
Yes. Our unflavored whey isolate is Kosher certified.

Sourcing & Manufacturing

Where is Fast Protein sourced and made?
All whey is sourced from Wisconsin, USA — specifically from cheese production. It is processed in an NSF-certified, FDA-compliant facility in Wisconsin and packaged in California, USA. Full traceability from source to bag.

What kind of cheese does Fast Protein's whey come from?
Our whey is derived from the following Wisconsin cheese types: White Cheddar, Mozzarella, Ricotta, Fior di Latte, Fresh Curd, Asiago, and Parmesan.

Why does Wisconsin whey matter?
Wisconsin is the only U.S. state with a Master Cheesemaker program, modeled after rigorous European standards. Wisconsin dairy farms are known for producing premium-quality milk, and Wisconsin cheeses regularly win top honors in national and global competitions. This translates directly to higher-quality whey protein.

Are cows treated with artificial growth hormones?
No. Our whey is rBST free — sourced from cows raised without artificial growth hormones or antibiotics.

Does Fast Protein use bleaching agents in production?
No. Fast Protein does not use hydrogen peroxide or benzoyl peroxide in its production process. We use pure whey with zero chemical modifications.

Dietary & Health Suitability

Is Fast Protein suitable for people with lactose intolerance?
Yes. As a whey isolate, most of the fat and lactose has been removed during processing. Each serving contains virtually no lactose (<1g), making it significantly easier to digest than whey concentrate for most people with lactose sensitivity.

Is Fast Protein suitable for a keto diet?
Yes. Our unflavored whey isolate has zero carbs, zero sugar, and zero fat per serving — ideal for ketogenic and strict low-carb diets. Whey protein does not kick you out of ketosis.

Is Fast Protein diabetic-friendly?
Yes. With zero sugar and an ultra-low glycemic index, our unflavored whey isolate has no impact on blood glucose or insulin levels when consumed in reasonable amounts.

Is Fast Protein gluten-free?
Yes. Our products are gluten-free. However, they are processed on shared equipment that may have traces of wheat. Please see the allergen notice below.

Is Fast Protein suitable for vegetarians?
Yes. Whey is derived from dairy (milk), making it suitable for lacto-vegetarians. It is not vegan.

Is Fast Protein suitable for women?
Yes. Protein shakes work just as well for women as men, with research consistently showing benefits for body composition, recovery, and weight management.

Are Fast Protein products appropriate for children?
Fast Protein products are formulated for adults 18 and over and are not recommended for children.

Can I take Fast Protein if I am pregnant or breastfeeding?
Please consult a medical doctor before taking our products if you are pregnant, nursing, on medication, or have a health condition.

Are protein shakes good for you?
Research consistently supports that protein powder can improve body composition, performance recovery, weight management, and help reduce age-related loss of lean muscle mass — when used as part of a balanced diet.

Usage & Serving

How much protein should I consume per day?
A general guideline is 0.7–1g of protein per pound of your goal body weight. For example, if your goal weight is 170 lbs, aim for 120–170g of protein per day. Two scoops of Fast Protein provide 60g toward that daily goal.

How many protein shakes per day?
We recommend 1–2 scoops daily. Each scoop is 34g and delivers 30g of protein.

When should I take Fast Protein?
Fast Protein can be consumed anytime — pre-workout, post-workout, or any time of day. Mix 1 scoop (34g) into 8 fl oz of water, milk, or your preferred liquid using a blender or shaker bottle.

How do I make a protein shake?
Add 1 scoop to 8 fl oz of cold water, milk, or your favorite beverage. Mix well using a shaker bottle or blender. For a richer taste, try unsweetened almond milk or ultra-filtered whole milk.

Can I add Fast Protein to food?
Yes. The unflavored whey is great for adding to oatmeal, cereal, yogurt, soup, pancakes, breads, cookies, energy bars, and more. It is flavorless and unsweetened, so it blends seamlessly into any recipe.

Can I consume Fast Protein daily?
Yes. Our whey protein contains no artificial ingredients and is safe for daily use.

Shipping & Orders

Do you offer free shipping?
Yes. We offer free standard domestic shipping for all orders over $79.99 and free local delivery in San Jose, and surrounding communities in Northern CA.

How long does shipping take?
Delivery within the US typically takes 2–3 business days after shipping.

Where do you ship?
We currently ship to addresses within the United States only.

Do you ship to P.O. boxes?
Not at this time.

Is your protein available outside the US?
Currently, products are only available in the US. We plan to sell internationally in the future. Please email us with import inquiries.

Is there a money-back guarantee?
Yes. We fully stand behind our products and offer a money-back quality guarantee for all customers. If you have any issues, please fill out our contact form or call us at 650-485-3701.

Do I need to subscribe to buy?
No subscription required. We offer sampler packs to try all flavors (Chocolate, Vanilla, Unflavored), as well as 1LB and 2LB bags.

Storage & Shelf Life

Where should I store Fast Protein?
Store in a cool, dry place away from direct or indirect heat and sunlight.

How long is the shelf life?
Our whey products expire 24 months from the manufacturing date. The expiration date is printed on the bag.

Allergen & Safety Information

Allergen warning:
All products are gluten-free; however, they are processed on shared equipment that may have traces of wheat. Contains milk. This product was produced in a facility that may process ingredients containing milk, soybeans, tree nuts, wheat, and peanuts.

Notice:
Use protein powder as a food supplement only. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Caution:
As with any dietary supplement, consult your physician before use, especially if you are pregnant, nursing, anticipating surgery, taking medication regularly, or otherwise under medical supervision.

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