Short answer: it can be, but it depends on the exact vrat you are observing and the ingredients used.

What to consider for Paryushan

• Paryushan involves vrat (fasting vows) and sattvik diet rules. Many Jains avoid onions, garlic, honey, root vegetables (like potato, carrot, garlic, onion, beetroot), and anything not strictly pure-vegetarian. Some people also limit dairy or skip it, depending on their tradition and vrata level.
• An acai smoothie bowl can fit sattvik guidelines if you choose simple, pure ingredients: acai fruit, other safe fruits (banana, berries), plant-based milk (almond, oat, soy) or water, and no honey or dairy if your vrat requires it. If dairy is acceptable for your family’s practice, you can use plain yogurt or milk, but confirm with your guru or temple guidance for your specific observance.
• What to watch out for: toppings and additives. Avoid honey, granola with non-sattvik ingredients, chocolate with non-vegetarian or non-sattvik additives, and any flavorings that come from root infusions or non-vegetarian sources. If unsure about a sauce, sweetener, or supplement, choose a minimal fruit-only bowl or ask the kitchen.

Restaurants or places to eat during Paryushan

• Look for Jain-friendly, pure-vegetarian restaurants or social kitchens near temples. A safe option is places that explicitly offer Jain or sattvik menus.
• When eating out, you can request: no onion, no garlic, no honey, no root vegetables, and no meat/fish. If dairy is restricted for your vrat, ask for dairy-free options.
• Temple langars or community kitchens often provide meals prepared under strict sattvik rules during Paryushan; these are reliable options to follow the vrat.
• If you’re unsure about a restaurant, call ahead and ask about ingredients and preparation, or choose a simple fruit-based snack or home-cooked meal instead.

Since rules for Paryushan can vary by Digambar vs. Shwetambar and by individual family vows, it’s best to check with your local Jain center, guru, or elder for your exact guidelines.