Following may help in acidity or heart burn:
Raw Apple Cider Vinegar
Mix 1-teaspoon vinegar (building up to 1 tablespoon) with approximately 8 ounces water; sip throughout the day and an hour before meals.
Sqeez a half lemon in a glass of water and sip it. Do take care that you drink whatever it is only when you ae sitting. Dont drink whe standing.
Have a fresh coconut water daily yo cure heart burn.
Yogurt or Milk
Yogurt or a glass of milk can relieve heartburn. Cow’s milk may offer immediate relief, but some say it can worsen the heartburn over time. Try nut milk, rice milk.
Eat 1 grapefruit after each meal.
It may sound counterintuitive, since grapefruit is known to be particularly acidic, but this fruit stimulates bile production in a powerful way. Once grapefruit is digested, it becomes alkaline. High alkaline foods are good for digestion, flatulence, and bloating.