In ekasana (one sitting meal), nuts and seeds are generally taken only if they are permitted within your specific vrata or upvaas rules and only in a simple, sattvik, non-spiced form.

Commonly accepted way

• Take them during the one sitting meal only.
• Prefer plain, dry, and unroasted nuts/seeds.
• Eat them in small quantity, as part of the meal, not separately later.
• Avoid salted, masala, fried, or packaged mixed snacks if your observance is strict.

Usually preferred nuts

• Almonds
• Walnuts
• Pistachios
• Cashews
• Raisins and other dry fruits are often taken with them in some traditions

Usually preferred seeds

• Pumpkin seeds
• Sunflower seeds
• Flax seeds
• Sesame seeds

Important Jain caution

In strict Jain observance, the exact allowance can vary by:

• tradition
• guru’s guidance
• whether it is ekasana, ayambil, or a special vrat

Some people keep ekasana very simple and may avoid foods that are too rich, too stimulating, or not in the spirit of restraint.

Best practice

• Eat only what is allowed in your vow
• Keep the meal simple, limited, and disciplined
• Follow the rule of your local Jain sangh or guru

If you want, I can also give a clear list of nuts and seeds allowed in ekasana under common Jain practice.