Strawberry–Mango Protein Smoothie (Goat Whey + Oat Milk)

This Mediterranean-friendly smoothie hits protein, fiber, and healthy fats—great for GLP-1 users and anyone focused on healthspan.

Why goat whey? Many people find goat whey easier on the gut; some report less bloating than with cow’s whey. Individual tolerance varies, but that’s why I’m using it here. I find Goat Whey still bothers my stomach so I don't use it - instead I use either a whey isolate (less lactose) or I use egg protein. 

Ingredients (1 large smoothie or 2 smaller servings)

• Oat milk, 1 cup — Kirkland Signature Oat Milk (Costco). Note: most oat milks are lightly sweet from oats; choose “unsweetened” if available to reduce sugars.
• Goat whey isolate protein, 1 scoop (≈25 g protein) — Cascade Farms Goat Whey Isolate (unflavored or vanilla).
• If you have lactose intolerance, use egg protein powder or a whey isolate.
• Frozen strawberries, 1 cup.
• Frozen mango, 1/2 cup (swap for the banana in the base formula).
• Chia seeds, 1 Tbsp.
• Optional creaminess: 1/4 cup plain yogurt (goat yogurt or nonfat Greek). Skip if you’re avoiding cow dairy.
• Optional flavor boosts: lemon zest, vanilla extract, pinch of cinnamon, or fresh ginger.

Directions

1. Add the oat milk to your blender, then the goat whey powder (and yogurt if using).
2. Add strawberries, mango, and chia. Ice is optional.
3. Blend 45–60 seconds until smooth. If too thick, add a splash more oat milk.
4. Serve 1 large (~24–28 oz) or 2 smaller (~12–14 oz) smoothies. Refrigerate leftovers up to 24 hours.

Nutrition (estimate, whole batch)

Assumes Kirkland-style oat milk, goat whey isolate (~25 g protein), and no optional yogurt. Brands vary.

• Calories: ~380 kcal
• Protein: ~32 g
• Carbs: ~47 g (fiber ~9 g; natural sugars ~26 g)
• Fat: ~10 g
• Omega-3 ALA: ~2.5 g (from chia)

If you add 1/4 cup plain yogurt: add ~30 kcal and ~4–5 g protein.

Tips & Swaps

• Smoother digestion: stick with egg protein powder if cow’s milk products bother you. I don't do well with whey based products because of my lactose intolerance. 
• Lower sugar: use “unsweetened” oat milk if available, or swap half the mango for extra strawberries.
• More fiber: add 1 Tbsp ground flaxseed.
• GLP-1 note: smaller portions, sip slowly; prioritize protein first if you’re nausea-prone.

Video example

See the 45-second Smoothies 101 build: